Unit 3 Topic 3: Working with Addition and Subtraction
Curriculum & Pacing Topic 1 Topic 2 Topic 3 Topic 4
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Standards
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Bears in a Cave
Relationship between addition and subtraction. You can refer to and revisit this lesson all year. Bears in a Cave Lesson Recording Book - Spanish Recording Book - English |
Student Samples:
Seesaw Video #1 - Sample problem with bear emojis Seesaw Video #2 - sample problem on whiteboard |
Trimester 1 Assessment Half-sheet
Give OAT 3 when you have gone over Three Towers and how equations can be written to represent the towers with addition and subtraction.
Give OAT 3 when you have gone over Three Towers and how equations can be written to represent the towers with addition and subtraction.
3.1 Story Problems
Story Problems
- Visualizing and retelling the action in addition situations and subtraction situations involving removal
- Developing strategies for solving addition and subtraction (removal) problems
- Recording solutions to a problem
3.2 Today's Number
Today's Number
- Generating equivalent expressions for a number
- Using numbers and standard notation (>, <, +, −, =) to record
- Connecting written numbers and standard notation
- (>, <, +, −, =) to the quantities and actions they represent
3.3 Adding and Subtracting: Story Problems and Games
Adding and Subtracting: Story Problems and Games
- Generating equivalent expressions for a number
- Using numbers and standard notation (>, <, +, −, =) to record
- Developing strategies for solving addition and subtraction (removal) problems
3.4 Strategies for Addition
Strategies for Addition
- Generating equivalent expressions for a number
- Developing strategies for solving addition and subtraction (removal) problems
- Recording solutions to a problem
3.5 Assessment: How Many Books?
Assessment: How Many Books?
- Developing strategies for solving addition and subtraction (removal) problems
- Seeing that subtracting the same two numbers (e.g., 6 from 10) results in the same difference regardless of context (e.g., number and dot cubes, cards, objects)
- Recording solutions to a problem