0Common Core Standards: Algebraic Thinking
Represent and solve problems involving addition and subtraction problems
Understand and apply properties of operations and the relationship between addition andsubtraction
Add and subtract within 20.
Work with addition and subtraction equations
Modifications
Vocabulary
Addition
Add, between, combine, equals, plus, number line, number sentence, numeral,order, sum, describe, digit, equation, addend-Addition key words: add, altogether, both, in all, sum, total, in total, combined, increase, together
Materials
Addition books from my class library, 4 small and 1 big foam snowflakes for vocabulary wordsthe
“
add and subtract body parts dance (by Jack Hartmann)
”:
Objectives
Solve addition problems using one, two, or three-digit numbers in 1 hour with 80%accuracy
Design and solve one addition word problem in 15 minutes with 75% accuracy.
Conclude which operation (addition) is used when moving to the right in 30 seconds with90% accuracy.
Match the appropriate symbols + and = with their meanings in 1 hour with 75% accuracy.
