Day 15 angle pairs intro
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This document introduces different types of angle pairs: - Complementary angles sum to 90 degrees. - Supplementary angles sum to 180 degrees. - Vertical angles are opposite angles formed when two lines intersect, and are always equal. - Adjacent angles share a common vertex and side. It provides examples of identifying different types of angle pairs and notes there will be a cumulative exam on angle pairs next week.
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This presentation defines and explains different types of angles. It begins by defining an angle as being formed by two rays with a common endpoint, called the vertex. It then discusses naming angles, types of angles such as acute, obtuse, right, zero and reflex angles. It also covers pairs of angles including complementary angles which sum to 90 degrees, supplementary angles which sum to 180 degrees, adjacent angles which share a vertex and side but not an interior section, vertically opposite angles formed by two intersecting lines, and linear pairs which are adjacent angles that sum to 180 degrees.
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This document summarizes key concepts about angles and parallel lines from Chapter 7 including:
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2) The sum of angles around a point is always 360 degrees.
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Identify
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- Examples are provided to illustrate different types of angles and their properties
- Homework assignments are listed asking students to practice finding unknown angles using properties of angles and parallel lines.
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Mathematics Form 1-Chapter 8 lines and angles KBSM of form 3 chp 1 ...
Mathematics Form 1-Chapter 8 lines and angles KBSM of form 3 chp 1 ...
More from Erik Tjersland
Linear equations lesson 8 day 2 graphing linear equations
The document is from a pre-algebra lesson on graphing linear equations. It discusses re-arranging equations into slope-intercept form (y=mx+b) and explains the procedure for graphing a line when given an equation in this format. Specifically, it describes using the slope (m) to rise/run and the y-intercept (b) to locate the point where the line crosses the y-axis. The document provides examples and questions to reinforce understanding of graphing linear equations from their slope-intercept form.
Linear equations lesson 8 day 1 graphing linear equations
The document is notes from a pre-algebra lesson on graphing linear equations using the y=mx+b format. It includes instructions to complete problems 9 and 10 on page 48, as well as examples of graphing different linear equations by plotting points from the equation and connecting them with a line. The closing question asks students to explain the procedure for graphing a line when given an equation in y=mx+b format.
Linear equations lesson 7 slope formula
This document appears to be notes from a pre-algebra lesson on calculating slope. It includes examples of slope calculations for lines on pages 42, 43, 47, and 48. The closing question asks students to explain the procedure for finding the slope of a line.
Module 4.5 lesson 10 scale area
This document contains notes from a math lesson on solving area problems using scale drawings. The lesson outlines the do now activity and upcoming homework assignments. It then discusses scale drawings and scale factors on pages 3 through 11, explaining how to use scale drawings to find the actual area of real-world objects.
Module 4.5 lesson 9 computing actual lengths
This document outlines a math lesson on computing actual lengths from a scale drawing. It includes notes on converting scaled measurements to actual lengths using scale factors. For homework, students are asked to complete problem set #4 which involves calculating actual distances based on scale drawings. A quiz on this content is scheduled for February 28.
Linear equations lesson 6 slope
This document contains notes from a pre-algebra lesson on slope. It includes examples of finding the slope of a line from its graph and equation. There is a quiz scheduled on linear equations for Wednesday February 15th for B day students and Thursday February 16th for A day students. The lesson discusses different types of slopes including positive, negative, zero, and undefined slopes.
Module 4.5 lesson 7 scale factor as a percent
This document contains notes from a math lesson on scale factor as a percent. It includes homework assignments and pages from the textbook covering topics such as calculating scale factor as a percentage and creating scale drawings with different horizontal and vertical scale factors. The closing question asks whether a scale drawing can have different horizontal and vertical scale factors and how to create one with different factors.
Module 4.5 lesson 6 scale map
This document discusses using scale maps to determine actual distances. It provides examples of using scale factors and proportions to calculate distances between towns based on their representation on a map. The scale of the map in the examples is 0.75 inches equals 4 miles. Students are asked to use this scale to determine actual distances between various town pairs. They are also asked why distances calculated from a map may be less than the actual distance driven in a car.
Linear equations lesson 5 horizontal and vertical lines
This document contains notes from a lesson on linear equations that focuses on horizontal and vertical lines. It includes examples of solving linear equations by choosing to fix either the x-value or y-value. Students are given a quiz on Thursday and Friday to assess their understanding of these concepts. The document provides instructions to complete example 5 on page 22 of the lesson materials.
Module 4.5 lesson 4 scale area problems
The document is from a math lesson on computing actual areas from scale drawings. It provides examples of finding scale factors from drawings and using them to determine actual areas. It asks students to check if their area calculations match the examples. The lesson closes by asking students how to find an actual area given a scale drawing and a situation where this would be useful.
Module 4.5 lesson 3 computing actual lengths from scale drawings
This document provides examples and explanations for computing actual lengths from scale drawings. It begins with an example of a proposed half basketball court that needs to fit within a 25 foot by 75 foot lot. It then explains that the scale factor is the constant of proportionality that relates the actual length to the drawn length. Several other examples are worked through, applying the concept of using the scale factor and a proportion to determine actual lengths from a scaled drawing. The document concludes by restating that the scale factor expresses the relationship between the actual object and its scale drawing.
Module 4.5 lesson 2 unit rate as the scale factor
This document contains notes from a math lesson on unit rate as a scale factor. It includes examples of using scale factors to determine measurements for scaled drawings. The key points are that scale factor is calculated as the ratio of actual to drawn measurements, scale factors greater than 1 enlarge a drawing while factors less than 1 reduce it, and scale factors can be used to find dimensions for scaled objects and maps using proportions. Homework includes problem set questions and creating a scaled drawing.
Linear equations lesson 4 graphing linear equations
This document outlines a lesson on graphing linear equations from tables of values. It provides instructions to complete example 2 on page 15, and schedules supplemental practice and a quiz for the following Thursday and Friday to reinforce the concepts taught in the lesson.
Module 4.5 lesson 1 scale drawings
1) The document provides lesson materials on scale drawings, including examples of scale drawings that are reductions or enlargements of original images. It discusses using scale drawings of maps and geometric shapes.
2) Students are asked to identify corresponding points on scale drawings of maps and the coordinates of vertices for geometric shapes. They are also asked to determine if a constant of proportionality exists for scale drawings.
3) The lesson aims to help students understand how to relate scale drawings to ratios and rates by analyzing examples of scale drawings and their relationships to original images.
Review for module 4 exam
The document outlines a review for a Module 4 exam. It instructs students to prepare for the exam by doing homework and going over the previous night's work with a partner. The review includes mixed exercises on percentages to help students study for concepts involving percents that could appear on the exam.
Linear equations lesson 3 consecutive integers
The document outlines a pre-algebra lesson on consecutive integers that includes:
- Writing let statements and equations to solve word problems involving consecutive integers
- Examples of consecutive integer word problems and their solutions
- A closing activity to explain the procedure for writing equations from word problems.
14 mixed review with percents with answers
The document outlines a math class focusing on percentages that includes a do now, homework assignments, and an exam date. It provides notes for a mixed review of percentage problems, repeating the class objective of percentage calculations.
Module 4 lesson 13
This document outlines notes from a science lesson on relative error. It includes instructions for students to complete homework problems and an experiment to measure density. The document provides examples to calculate relative error and asks students to consider how this concept could be applied to other labs.
Module 4 lesson 12 relative error
This document contains notes from a math lesson on relative error. It includes the date of the lesson, topics to be covered which are finding the percent error of measurements and the purpose of finding percent error. The document provides examples of measurements and the corresponding percent errors. It also lists homework problems and the date of an upcoming exam.
Linear equations lesson 2 geometric word problems
This document outlines a lesson on solving geometric word problems algebraically. It provides instructions for students to complete problems 25-30 on page 4, which involve writing a "let statement" and equation for each word problem and solving to find the answer. The document includes pages of example problems and explains the procedure for writing an equation from a word problem. It concludes with a closing activity for students to explain their process.
More from Erik Tjersland (20)
Linear equations lesson 8 day 2 graphing linear equations
Linear equations lesson 8 day 2 graphing linear equations
Linear equations lesson 8 day 1 graphing linear equations
Linear equations lesson 8 day 1 graphing linear equations
Linear equations lesson 5 horizontal and vertical lines
Linear equations lesson 5 horizontal and vertical lines
Module 4.5 lesson 3 computing actual lengths from scale drawings
Module 4.5 lesson 3 computing actual lengths from scale drawings
Linear equations lesson 4 graphing linear equations
Linear equations lesson 4 graphing linear equations
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Day 15 angle pairs intro
- 1. Angle Pairs Intro.notebook 1 May 03, 2013 Do Now AIM: Angle Pairs Introduction Weekly Quiz
- 2. Angle Pairs Intro.notebook 2 May 03, 2013 How to name an angle? A B C 1.) 2.) A B C D 1 2
- 3. Angle Pairs Intro.notebook 3 May 03, 2013 a b a + b = 90o a b a + b = 180o Complementary Angles Angles that sum to 900 . They do not have to be adjacent. Supplementary Angles Angles that sum to 1800 . They do not have to be adjacent.
- 4. Angle Pairs Intro.notebook 4 May 03, 2013 a b C d a = b c = d b a c d abd and dbc are adjacent. The sum of these two angles equals abc Vertical Angles Adjacent Angles Vertical angles are the angles opposite each other when two lines cross. Vertical angles are equal. Adjacent angles are angles that share a common vertex and a common side.
- 5. Angle Pairs Intro.notebook 5 May 03, 2013 Identify the following as either Complementary, Supplementary, Vertical, or Adjacent. Complementary Supplementary Vertical Adjacent Vertical Supplementary Adjacent Complementary Vertical Vertical Vertical Complementary Supplementary Supplementary
- 10. Angle Pairs Intro.notebook 10 May 03, 2013 Before You Leave Come up with an easy way to remember the difference between complementary and supplementary.
- 11. Angle Pairs Intro.notebook 11 May 03, 2013 Homework Cumulative Exam #7 next Friday 5/10/13