Teacher Resources for Instructional Planning


Grade 4, Math Std 10: Complete addition and subtraction number sentences with a missing addend or subtrahend.

Lesson Plans: Missing Addends PowerPoint Students learn about missing addends. They will then go to the computer lab and create their own multimedia presentation with missing addend facts. Students will work in groups to solve each other's missing addend facts. Food Pyramid Power - Try for Five Students explore the many ways to decompose numbers, and they build on their knowledge of addition and subtraction to find missing addends. (Use lesson 5 from the unit.) Addend, Addend - Who's My Addend? This kinesthetic lesson provides students with the opportunity to fill in the missing addend in an addition sentence with sums to 20. This lesson could very easily be adapted to small group instruction. The teacher could reduce or increase the degree of difficulty by only using sums to smaller or larger numbers. We're Going on a Trip! A subtraction lesson allowing students to use word problems to discover the answer to missing addend and subtraction problems.

Resources: Missing Addends Students work in pairs or small teams to solve problems with missing addends. A Maths Dictionary for Kids by Jenny Eather The Maths Dictionary is animated, interactive, and allows students to practice their math skills. Over 500 terms are explained in simple language. Click on "billion" and discover that you have 10 billion brain cells working for you right now. Roll your mouse over the world time zone chart and you instantly know the time for that part of the world. Every math teacher should bookmark this Web site. National Library of Virtual Manipulatives Virtual manipulatives related to NCTM standards in the areas of Number & Operations, Algebra, Geometry, Measurement, and Data Analysis & Probability. To access tools, click inside the grid on the cell that matches the grade level and standards area desired. Figure This! From NCTM: Three to four math challenges using real world examples are posted here each month. For those who need help solving the challenge, there are hints and complete solutions, along with related problems. Math Baseball An online resource for mathematics practice. Use the option "YES" under "Algebra Style." Missing Addends - "Celebrity Heads" Students will solve problems and find the missing addend playing the game "Celebrity Heads".
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