1.MATH.3.B
Use objects and pictorial models to solve word problems involving joining, separating, and comparing sets within 20 and unknowns as any one of the terms in the problem such as 2 + 4 = [ ]; 3 + [ ] = 7; and 5 = [ ] - 3.
Grade 1 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
objectspictorial modelsword problemsjoiningseparatingcomparing setsunknownstermsproblem
Skills
- solve (word problems involving joining, separating, and comparing sets within 20) #dok2
- model (word problem situations using objects and pictures) #dok2
- identify (unknowns in addition and subtraction problems) #dok1
- represent (unknown as any one of the terms in a problem) #dok2
Learning Targets
- I can identify the unknown number in an addition or subtraction word problem. #dok1
- I can use objects and pictures to show how sets are joined, separated, or compared in a problem. #dok2
- I can solve word problems within 20 by joining, separating, or comparing sets where the unknown could be any term. #dok2
- I can explain how I found the unknown in a word problem using objects or drawings. #dok3
Big Ideas
- Addition and subtraction can represent joining, separating, and comparing sets using real-world situations.
- Word problems may have an unknown in any position, and can be modeled and solved with objects or drawings.
Essential Questions
- How can I use objects or pictures to help solve a word problem?
- What does it mean to 'join,' 'separate,' or 'compare' in a math problem?
- How can I find the unknown number if it's missing from any part of a word problem?
- Why is it important to use different strategies to show my thinking?
- Where can I see joining, separating, or comparing sets happening in real life?