Problem Solving and the Common Core

CONTENTS OF CURRICULUM UNIT 15.05.03

  1. Unit Guide
  1. Introduction
  2. Objectives
  3. Background: Problem Types
  4. Teaching Strategies
  5. Classroom Activities
  6. Resources
  7. Appendix A: Problem Set
  8. Appendix B – Implementing Common Core Standards
  9. Notes

Real World Problem Solving in Second Grade Mathematics

Carol P. Boynton

Published September 2015

Tools for this Unit:

Appendix A: Problem Set

Change Increase / Result Unknown

7 students are in the classroom. 2 more students join them. How many students are in the classroom now?

Change Increase / Change Unknown

7 students are in the classroom. Some more students join them. Then there were 9 students. How many students join the first 7?

Change Increase / Initial Unknown

Some students are in the classroom. 2 more students joined them. Then there were 9 students. How many students were in the classroom at the beginning?

Change Decrease / Result Unknown

9 students were in the classroom. 2 students went home. How many students are in the classroom now?

Change Decrease / Change Unknown

9 students were in the classroom. Some students went home. Now there are 7 students. How many students went home?

Change Decrease / Initial Unknown

Some students were in the classroom. 2 students went home. Then there were 7 students in the classroom. How many students were in the classroom in the beginning?

Compare More / Difference Unknown

Sam has 10 French fries. Emily has 6 French fries. How many more does Sam have than Emily?

Compare More / Greater Unknown

Sam has 4 more French fries than Emily. Emily has 6 French fries. How many French fries does Sam have?

Compare More / Smaller Unknown

Sam has 4 more French fries than Emily. Sam has 10 French fries. How many French fries does Emily have?

Compare Fewer / Difference Unknown

Sam has 10 French fries. Emily has 6 French fries. How many fewer does Emily have than Sam?

Compare Fewer / Smaller Unknown

Emily has 4 fewer French fries than Sam. Sam has 10 French fries. How many French fries doe Emily have?

Compare Fewer / Greater Unknown

Emily has 4 fewer French fries than Sam. Emily has 6 French fries. How many French fries does Sam have?

Part-Part-Whole / Whole Unknown

Sam has 4 cookies for lunch. He has 2 more for dinner. How many cookies does Sam have?

Part-Part-Whole / Whole Unknown

Sam ate 6 cookies today. He had 4 of them for lunch. How many did he have for dinner?

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