This document summarizes the key insights and lessons learned from a maths department's lesson study process. It discusses three separate lesson plans: 1) using geometry to solve a real-world problem of designing cheerleader skirts, 2) hands-on scaling of crocheted owls to demonstrate dimensional concepts, and 3) a video explaining derivatives and tangents to curves. Data collected showed that students were highly motivated when lessons had real-life applications and that peer-to-peer learning and discussion aided understanding. The process helped teachers strengthen their conceptual grasp of topics and encouraged more student questioning.
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Presenter, Dr Tracey Muir, for Connect with Maths Early Years Learning in Mathematics community
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Creating Mathematical Opportunities in the Early Years
Presenter, Dr Tracey Muir, for Connect with Maths Early Years Learning in Mathematics community
As teachers, we are constantly looking for ways in which we can provide students with mathematical opportunities to engage in purposeful and authentic learning experiences. On a daily basis we need to select teaching content and approaches that will stimulate our children through creating contexts that are meaningful and appropriate. This requires a level of knowledge that extends beyond content, to pedagogy and learning styles. As early childhood educators, we can also benefit from an understanding of how the foundational ideas in mathematics form the basis for key mathematical concepts that are developed throughout a child’s school.
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Chapter 4: Using Bloom Taxonomy to Improve Student Learning_Questioning.pptxVATHVARY
Understand the levels of Bloom’s Taxonomy within the cognitive domain and how they can be applied to questioning techniques in teaching.
Develop effective questioning strategies that align with different levels of Bloom’s Taxonomy to enhance student learning and critical thinking skills.
Practice creating questions that target specific cognitive processes such as remembering, understanding, applying, analyzing, evaluating, and creating.
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The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
farm area perimeter volume technology and livelihood educationmamvic
area perimeter and volume lesson in mathematics technology and livelihood education helps students about mathematics in farm activities easy to understand lesson about area perimeter and volume. has something to do about how students will study and understand lesson related to technology and livelihood education and mathematics relationship.
Chapter 4: Using Bloom Taxonomy to Improve Student Learning_Questioning.pptxVATHVARY
Understand the levels of Bloom’s Taxonomy within the cognitive domain and how they can be applied to questioning techniques in teaching.
Develop effective questioning strategies that align with different levels of Bloom’s Taxonomy to enhance student learning and critical thinking skills.
Practice creating questions that target specific cognitive processes such as remembering, understanding, applying, analyzing, evaluating, and creating.
Evaluate the effectiveness of different types of questions in promoting deeper understanding and retention of course material among students.
Apply Bloom’s Taxonomy principles to design assessments that incorporate various levels of cognitive complexity through well-crafted questions.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
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Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
2. • Aileen Hanratty & Maths Department
• Senior Cycle
• Necessity is the mother of invention: Real life
applications of Mathematics
2
3. • Introduction: Focus of Lesson
• Student Learning : What we learned about students’
understanding based on data collected
• Teaching Strategies: What we noticed about our own
teaching
• Strengths & Weaknesses of adopting the Lesson
Study process
3
4. • Topic investigated:
• There is no singular topic investigated here. This
presentation will deal with how various concepts in
mathematics can be used in real life applications.
Many strands of the syllabus will be explored, and
connections within the various strands will become
evident.
• How we planned the lesson
• In some cases it was necessity in others we had a
discussion with the maths department
4
5. • How we planned the lesson
• In some cases the mathematical learning outcomes
arose through the necessity to understand them
• In other cases the students had difficulty
understanding concepts e.g. graph function and its
derivative – slope function. New methodologies had
to be developed to enhance student understanding
of this topic
5
6. • Resources used
• Too numerous to mention!
• However the most important resources used
throughout this lesson study were;
• Time
• Teachers
• The students themselves and their willingness to engage
with the activities
6
7. Learning Outcomes
• This presentation consists of 3 separate sessions
1. Geometry as a problem-solving tool
2. Hands-on approach to dimensions and Scale of Factor
3. Getting animated about differentials
• Each session had different learning outcomes
• The over riding theme is;
• How mathematical concepts are related to everyday situations
• Why it is important to understand various concepts in mathematics to enable
students to complete these tasks
• Why did we choose to focus on this mathematical area?
• To allow students to discover that mathematics is not simply a subject they must
study at school, but rather a skill they must develop to solve problems they will
encounter in their everyday lives
7
8. • Enduring understandings
• Mathematics is an important tool
• It is not just a subject a school
• If students develop a good understanding of
mathematics at this stage in their lives, the skill
will stay with them forever.
8
9. Transition Year Project Maths
Aileen Hanratty, Una Rooney, Patricia Grimes
Using Geometry as a problem-solving tool
9
The following slides show the lesson
study of how students solved a real-
life practical problem using
mathematics
10. • Students learned how to apply geometry of
circles and cones to a practical craft
• Students learned that mathematical
knowledge can be applied to more than one
facet of the student’s life (effective learning)
• Students uncovered links to other disciplines
and mathematical concepts
10
11. • How to make a cheerleaders skirt
• Students learned that mathematical
knowledge can be applied to more than one
facet of the student’s life (effective learning)
• Students uncovered links to other disciplines
and mathematical concepts
11
12. • How do you make Cheerleader
skirts in different sizes,
without a pattern?
13. (a) a very large Compass (or a piece of string
secured at one end will do)
(b) A calculator
(c) A roll of cheap curtain material or old sheets
that students have at home.
(d) And some measurements.
14. • Collect measurements from each student e.g.
Size 8 or Size 10, 12, 14.
• Each skirt will have to be cut a different size
and the calculations will have to be adjusted
for each batch of sizes.
18. • You need to know the intended length of the
skirt, leaving an extra two inches for a hem.
• E.g. for size 10 the length without a hem or
waist band should be at least 15 inches. If we
add 2 inches for a hem, then the skirt length
must be 17 inches.
• What will be the radius of the larger circle?
24. • Size 8 = 24”(circumference in inches)
• 24 = 2πr
• 12 = πr
• 3.8 = radius of inner circle
• Now add 14” (length) + 2” (hem) = 16”
• Radius of outer circle + 3.8” + 16” = 19.8”
• Radius of outer circle = 19.8”
25. If we wished to encase a waistband in
the body of the skirt rather than add a
waist band, how would this change
our measurements?
26.
27. So for size 10 we use 3.1 inches for the inner
circle. After snipping and folding back 1 inch all
round, the radius becomes 4.1 inches, which
gives a circumference (waistline) of 26 inches as
before.
But what is the radius of the outer Circle?
i.e. How long should the skirt be?
31. • Before we discuss this, we have another two
topics to explore, I would prefer to provide a
final overview of all the mathematics the
students encountered.
• The second topic I explored was
• Hands-on approach to dimensions and Scale
of Factor
31
32. • Hands-on approach to dimensions and Scale
of Factor
– Real-life application of scaling areas/volumes
– Students’ difficulty visualising the problem
– Teaching examples sometimes a bit abstract
– Strength of the plan – practical insights
– Weakness –relevance of the illustrative craft
technique may be limited
32
33. ENDURING/EFFECTIVE LEARNING OUTCOMES
• Students have a deeper understanding of the
underlying concepts of dimensional scaling
• Students have improved spatial reasoning and
awareness
• Students are able to apply this knowledge in
examinations and real-life situations
33
34. • “Maths is not scary if you can touch it”
Prof. Daina Taimina, Cornell University, 2007
34
35. ASSUMPTIONS
• Students have previously learned:
– what Enlargement and Scale of Factor mean
– how to enlarge an image by a scale of factor in 2D
– what an object and its image being Similar means
– that corresponding sides of an object and its
image are in the same ratio
35
36. • The students learn a new skill
– How to make objects by crochet
(Note: this is a transition year module)
• This project involves working with teachers in
any of the following areas:
– Art and Craft
– Home Economics
– Mini Company
– Gaisce (President’s Award)
36
37. 37
Each student
will crochet an
owl with the
same specified
dimension
using a pattern,
wool and
crochet hook
provided.
38. 38
• Basic body pattern is radially symmetrical –
like a vase
• Formed from a spiral of interlocking knots in
four distinct sections:
– flat base
– expanding curved surface
– vertical tube
– converging curved surface
39. 39
An initial circle of six crochet stitches which, when
continued, spiral outwards adding six extra stitches to each
revolution, resulting in a flat disk. (6, 12, 18, 24, 30… up to
60 stiches)
40. 40
Once the flat base is wide enough, the pattern gradually
changes from a horizontal spiral to a vertical helix by
reducing the number of additional stitches per revolution.
Instead of adding six extra, add five, then four, then three
then two then one then none. The result is a locally-
curved section rather like the surface of a bowl.
41. 41
For as long as the crochet pattern has the same number
of stiches per revolution, each turn of the helix will have
the same radius and will sit exactly above the previous
one, resulting in a vertical cylinder shape.
42. 42
Approaching the top of the crocheted owl, the pattern
will begin to narrow again. This is achieved as an
inversion of the transition described previously. Instead
of keeping the same number of stitches per turn, reduce
by one, then by two, then by three … until the top
opening is sufficiently narrow.
43. 43
Let’s find out an
approximation of his area.
Having flattened him, we
can use the Trapezoidal rule
to make an estimate of his
surface area remembering
to multiply the result by two
for front and back.
(Note: ideally we would take
a measurement of the
curved surface rather than
flat surface area.)
44. Here we have divided Bill’s flattened profile into
trapezia, each of 10mm width.
45. 45
Measure and then cut out the required
circles and triangle from a sheet of felt.
Area = ½ base x
height
Area = πr²
47. 47
Students are offered a choice:
• scale to a factor of 2
or
• scale to a factor of ½
(Some students may choose neither and
decide to scale even larger than 2.)
48. 48
We must adjust the pattern to take account of the
increased scale.
• Double the number of turns in the flat base
spiral, thereby doubling its diameter. There will
also be twice as many stitches per revolution in
the helical section.
What size do we expect Bill to turn into when he
becomes ‘Big Phil’?
• Ask students to visualize his size before calculating how
the volume and surface area will change
50. 50
• Big Phil should therefore be four times bigger
in area than Bill.
This can be
verified using
the
Trapezoidal
Rule
51. 51
Students can draw and cut out Phil’s triangular beak using what they
have learned about Similar triangles. The diameter of the eyeball circle
will also double.
Hence the surface area of Big Phil’s eyes and beak should each be four
times larger than Bill’s. (Verify using ½ base x height and πr²)
52. 52
Can students now guess by what factor the volume of
Big Phil has increased?
• Does he have 2²= 4 or 2³ = 8 times the volume of
Bill?
By a process of discussion, students should arrive at the
conclusion that Phil will need 2³ times the volume of
stuffing that Bill needed.
This hypothesis can be empirically tested as soon as the first student has
completed and stuffed Big Phil. (The stuffing can be removed and weighed.)
Phil’s weight should be approximately 40 x 2³ = 320 grams.
54. 54
To crochet ‘Baby Dill’, simply halve the number of turns in
the spiral base compared to Bill. Likewise, there will only
be half the number of stitches per turn of the helix.
Dill’s surface area will be
(½)² i.e. one quarter of
Bill’s.
56. 56
How much filling will be needed to stuff Dill?
Based on the conclusions made about Big Phil,
students should be able to see that Dill’s volume is
(½)³ times that of Bill.
The required weight of stuffing is therefore:
40 x (½)³ = 5 grams.
58. 58
• Eyes and beak to be sewn onto the helical
section
• Wings can be added, and students can include
ornamental touches (flowers etc.) if they wish
• Sew up the top hole and you are finally ready
to make a….
60. 60
• The effect of varying arithmetic progressions in the crochet
pattern
• Changing other physical variables and investigating their
effects on scale)
– Thickness of wool
– Size of crochet hook
• Non-Euclidian geometry on the curved surfaces (where the
angles of triangles sum to >180 degrees)
• Visualising hyperbolic geometry using hyperbolic crochet
patterns
– www.youtube.com/watch?v=w1TBZhd-sN0
61. 61
Just before I get to the reflections of the lesson
study, I have one more lesson to share with you.
Getting animated about differentials
62. 62
• To explain tangents as the local gradient of a
curve
• To use a strong visual analogy to reinforce the
concepts of sign of slope, point of inflection and
max/min turning points
• To use humour to encourage students to think
about other real-life applications of calculus
63. 63
• Students gain an intuitive feel for
tangents to curves
• Students thereby overcome the
perception that calculus is abstract
and inaccessible
67. • Data Collected from the Lesson(s):
1. Academic e.g. samples of students’ work
Cheerleading skirts: 2 π r2
67
68. • Data Collected from the Lesson:
Motivation:
In terms of session 1: The cheer leader skirts, the students
were intrinsically motivated to find a way to complete the
project as they were directly involved with the play.
If the costumes were not finished, it would reflect poorly on
the overall production. Students didn’t even realise they
were using mathematical formulas and ratios until half way
through the process.
68
69. • Data Collected from the Lesson:
Motivation:
For the Bill, Dil and Phil activities, students began to connect
different areas of the syllabus together (area, volume, patterns,
Cartesian plane etc) without even realising it. They discovered
(by themselves) various relationships between increasing area,
scale factor, volume and so on)
69
70. • Data Collected from the Lesson:
Motivation:
In terms of Calculus, the graph function and slope function. My
students were confused, when I showed them the video for the
first time.. They didn’t get it! However it initiated a class
discussion. Students started to talk (verbalise) what they thought
might be happening. There were disagreements/ debates and
discussion. However, once they viewed the video a few times,
they developed an understanding of what the slope function was
and how it was related to the rate of change compared to the
actual graph function
70
71. • What we learned about the way different
students understand the content of these topics?
• Student like to discuss topics with eachother
(peer to peer learning)
• Students need to be able to relate mathematics
to real life, or in some cases discovered that real
life could be related to mathematics!
• Allowing student discussion/questioning/
debating enhances the learning process
71
72. • What effective understanding of this topic looks like:
• In terms of our “Cheerleading skirt”.. The show went on
because the students were able to mathematically
work out the cutting of material, sizes and length ratio
• Students physically created “Bill”, Dill” and “Phil” and
understood the concepts of scale factor, area, volume etc
• The video on the roller coaster was designed to elicit
discussion and debate from students.. And it succeeded, I
had to show the video a few times, but the learning
outcome was achieved, students did have a solid
understanding of the “Slope Function” and were able to
explain exactly what was happening in relation to the
initial function – Rate of change
72
73. • The understandings we gained regarding students’
learning as a result of being involved in the research
lesson
• Students learn by doing
• Important to allow time for students to discuss/debate
various concepts e.g. roller coaster video
• Mistakes are part of the “learning process” and a NOT a
negative thing
• Project Maths .. We must enjoy the process more and
worry less about the end result, the process is where the
learning/understanding occurs
• Enjoyed working together, collaboration
• Maths is a very clever problem solving tool
73
74. • What did we learn about this content to
ensure we had a strong conceptual
understanding of this topic?
• As a teacher I had to spend a lot of time
researching material I thought I already knew.
• This time was well spent as I made new
connections in my own mind, discovered new
concepts, and developed new methodologies
74
75. What did I notice about my own teaching?
• Was it difficult?
• Intially, yes it was more difficult
• More time needed
• Much nosier classroom
• Slower progress
• Fell behind in our year plan for common tests
75
76. • BUT..
• Had more conversations with students about
mathematics
• More questions asked by students, such as “ what if”,
“how come “ “why”
• Students did seem to develop an understanding of
mathematical concepts, instead of just “learning a
formula”
• Students were much more engaged in class and a lot
more discussion/ debate took place
• Peer to peer learning became the norm
76
77. • Was it difficult to ask questions to provoke
students’ deep thinking?
• In short.. With the work we did.. It was the
students who asked the “deeper” questions..
“what will we do if?, if I do this what will
happen?, how can we know that?” and so on
77
78. • How did I engage and sustain students’ interest
and attention during the lesson?
• To be fair.. You’ve seen what I have done.. The
students were engaged and they wanted to
know what would happen.. If I pick a scale factor
of a half, or two or maybe 4 how big will my
puppet be?
• The cheerleading skirts, if I make the wrong
measurements, will we still have enough
material?
78
79. • How did I assess what students knew and understood
during the lesson?
• Well, the show went on, the students had very little
room for error when making the skirts
• Bill, Dil and Phil were created
• Students were able to verbalise /discuss and debate
the difference between the slope function of a cubic
graph and the graph function itself, they had
developed and understanding how one was the initial
function and the other was the rate of change and
were able to explain it to me and each other
79
80. • What understandings have I developed
regarding teaching strategies for this topic as a
result of my involvement in Lesson Study?
• Encourage hands on resources (whatever they
may be)
• Step back.. Allow students to make errors, then
ask, what do you think might be wrong?
• Encourage students to relate mathematical
problems to real life contexts
• Encourage students to develop problem solving
skills
80
81. Strengths & Weaknesses
• As a mathematics team how has Lesson
Study impacted on the way we work with
other colleagues?
• We collaborate a lot more with each other
and other departments within the school
81
82. Strengths & Weaknesses
• Personally, how has Lesson Study supported
my growth as a teacher?
• I enjoy teaching maths a lot more, I am always
thinking of “new ways” to approach a topic.
• I have learned a lot more about the nature of
mathematics and the numerous ways it can be
applied to “Real life”
82
83. Strengths & Weaknesses
• Recommendations as to how Lesson Study
could be integrated into a school context.
• The maths department intends to share all of
our findings with the rest of the staff in the
school
83