2-Digit+Subtraction+(2nd+Grade)

Contributing Teacher(s): Bonnie A. Noyes
Resources:

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CFU 0206.2.8 Use efficient procedures, and understand why they work, to solve problems involving the addition and subtraction of two- and three-digit whole numbers (including those that require regrouping).======

ISTE Technology:
1. Creativity and Innovation Students demonstrate creative thinking, construct knowledge, and develop innovative products and processes using technology. c. Students: use models and simulations to explore complex systems and issues.

Introduction/Problem: Students need to be able to solve story problems so they can solve real-life math problems.
===Procedures: Using the Kidsiration 3 file "Subtraction Word Problems" students will use virtual base-ten blocks to model and solve subtraction word problems. Students will also fill in their answer to the question at the top of each page. When finished with the center, students will save their work to the desktop, naming the file with their name and today's date. ===

Student Product/Work: When finished with the center, students will save their work to the desktop, naming the file with their name and today's date.
===Assessment/Rubric: Eight points for each correct answer (80 points possible); two points for using base-ten blocks to model each problem (20 points possible). Use District Grading Scale to determine grade. ===

Enrichment/Reteaching:
Use the Kidspiration 3 " Subtraction Word Problems " as an example to create your own word problems. Open your saved file and look for the teacher notes that were added to your file. Correct your mistakes or any unfinished work and resave your file.