The Wonderful Worldof Math for Children By: Stacey Roberts
What is a Venn Diagram? Is a type of graphic organizer that uses overlapping circles tovisually represent the commonalities amongst sets of information. It is used in math to help children understand word problems, addition, subtraction, multiplication, and division.
All ages can use Venn DiagramsThe Venn diagram in kindergarten? Yes! Venn diagramscan be used effectively by our youngest students. Thetrick is to make them user-friendly, hands-on, anddevelopmentally appropriate as a tool even kindergartenstudents can use with ease. Guide students toward anunderstanding of the Venn diagram by letting themphysically manipulate hoola by side, have students tohelp you sort the balls, with one color in each hoop.Allow students to problem-solve to figure out what to dowith the bi-colored ball, prompting them by physicallyoverlapping the hoola hoops if needed. help studentslabel the Venn diagram using index cards, and exploreother ways it can be used. In other sessions, studentscan sort shapes, animals, and other objects. hoops.Begin with two hoops and two colors of blass, with oneball containing both colors. With the hoops side
Rules For Adding, Subtracting, Multiplying andDividing Numbers with the same and different signs. If the signs are the SAME, then the answer is POSITIVE.If the signs are DIFFERENT, then the answer is NEGATIVE.
Adding and SubtractingAddition and subtractionskills can be worked intomany activities at alllevels of elementaryschool. Throughoutelementaryschool, students work tomaster all the facets ofaddition and subtractionlisted on state standardsand benchmarks across thenation. Many of theactivities disguise factpracticing behind anengaging game thatstudents enjoyparticipating in while 5+0=5working on mastery of theconcept.
How Addition and Subtraction Problems using a Number LineUse the number line for addingand subtracting integers: Here is a youtube linkAdd a positive integer by moving that will help explainto the right on the number line how to add andAdd a negative integer by subtract using amoving to the left on the numberline number lineSubtract an integer by adding itsopposite http://www.youtube.comTry it by clicking on the /watch?v=byTIRd74ryo&fproblems below. eature=player_embeddedWatch out! The negative of anegative is the opposite positive #!number. That is, for realnumbers, - (- a ) = + a
Multiplying and DividingTo multiply integers with like signs, multiply the numbers and put a positive sign in front of theanswer, regardless of whether the numbers were both positive or both negative.Imagine youre going on a trip with three friends and you want to split the cost evenly. The trip costs$200, so each person will have to contribute $50.2To divide integers with like signs, divide the numbers and put a positive sign in front of theanswer, regardless of whether the numbers were both positive or both negative.There is no good way to model this one. You just have to accept that it works out this way.3To multiply integers with unlike signs, multiply the numbers and put a negative sign in front of theanswer. This is different from adding or subtracting signed integers because it doesnt matter whichnumber is larger.For example, if three people each buy a $2 fruit smoothie, then theyll owe the cashier $6.4To divide integers with unlike signs, divide the numbers and put a negative sign in front of theanswer. This is also different from adding or subtracting signed integers because it still doesntmatter which number is larger.Six friends go in together on something that costs $18. If they split it evenly, each person will owe $3.