Foreman Facilitation Guide
Foreman Facilitation Guide
Problem Solvers Workshop: Tier 2 Intervention
GRADE 2 Intervention
Learning Objective
Students will represent and solve one-step addition and subtraction word problems (within 20) using drawings, manipulatives, and equations with a symbol for the unknown.
Standard (CO 2.OA.1): Use addition and subtraction within 100 to solve one-step word problems... using drawings and equations with a symbol for the unknown.
Materials
- Connecting cubes (20/student)
- Small group whiteboards
- Workshop Blueprint Slides
- Student Activity Sheets
Step 1: Act It Out (10 min)
Objective: Visualize the action of the problem.
Prompt: "We are construction workers today! Let's act out our first project."
Scenario: "Sam has 8 bricks. Then he buys 5 more bricks. How many bricks does he have now?"
- Have one student hold 8 cubes.
- Have another student 'deliver' 5 more cubes.
- Ask: "Is the number getting bigger or smaller? Are we joining or taking away?"
Step 2: Sorting Situations (10 min)
Objective: Identify the operation based on context.
Addition (Joining)
Join, Together, More, All, Total
Subtraction (Separating)
Separate, Away, Fewer, Left, Standing
Use the "Blueprint Sorting" activity. Ask: "Is the number getting bigger (joining) or smaller (separating)?"
Step 3: Drawing & Equations (15 min)
Scaffold the move from cubes to paper.
The Blueprint Strategy:
- Draw: Use circles or boxes to represent the "bricks".
- Label: Label the parts and the whole.
- Write: Create an equation with a box \(\square\) for the missing number.
Foreman's Warning: Common Misconceptions
- Keyword Confusion: Students might see "more" and assume addition, even if it's a comparison subtraction problem. Always ask: "What happened in the story?"
- Total Placement: Ensure students place the total (whole) correctly in the equation, especially for subtraction (e.g., \(12 - 5 = 7\) vs \(5 - 12\)).
Answer Key
Activity Sheet Sort
- Job A: Joining (Addition)
- Job B: Separating (Subtraction)
- Job C: Separating (Subtraction)
- Job D: Joining (Addition)
Exit Tickets
Assessment #1 (Subtraction):
Equation: \(14 - 6 = \square\)
Answer: 8 vests
Assessment #2 (Addition):
Equation: \(8 + 7 = \square\)
Answer: 15 bits
Progress Monitoring Tracker
| Student Name | Sort Accuracy | Drawing Strategy | Eq with Box \(\square\) | Final Answer |
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Scoring Guide: ✔ = Proficient | P = Partial | N = Needs Support
Workshop Blueprint Slides
Problem Solvers
Workshop
Grade 2 • Tier 2 Intervention
The Project Goal
I can represent and solve addition and subtraction word problems using drawings and equations.
Draw It
Solve It
Step 1: Act It Out
Work Site Scenario:
Sam has 8 bricks. Then he buys 5 more bricks. How many bricks does he have now?
Are we JOINING?
Are we SEPARATING?
The Blueprint Strategy
1
DRAW
Sketch quick circles or boxes to represent the numbers.
2
LABEL
Mark your parts and find the whole.
3
EQUATION
Write a number sentence with a box \(\square\) for the missing part.
Job #1: Addition
Mia has 9 nails. Her partner gives her 7 more nails. How many nails does Mia have now?
Draw it on your whiteboard!
9 + 7 = \(\square\)
16 Nails
Job #2: Subtraction
Ben has 15 boards. He uses 6 boards for a shelf. How many boards are left?
Is this separating or joining?
15 - 6 = \(\square\)
9 Boards
Identify the Action!
JOINING
Numbers get
BIGGER
SEPARATING
Numbers get
SMALLER
Workshop Activity Sheet
Workshop Activity Sheet
Name:
Date:
Job Site
Blueprint
1
Blueprint Sorting
Is the story joining (adding) or separating (subtracting)? Read each job site story and check the correct box.
Job A: A truck delivers 12 loads of dirt. Then it delivers 5 more loads. How many loads in all?
Joining
Separating
Job B: Max had 18 wrenches. He lost 7 of them in the grass. How many does he have left?
Joining
Separating
Job C: There are 15 orange cones. 9 cones fall over. How many cones are still standing?
Joining
Separating
Job D: Leo buys 6 hammers. His boss gives him 8 more. How many hammers total?
Joining
Separating
2
Blueprint Workspace
PROJECT: The Nail Bin Draw • Label • Solve
Mia has 9 nails. Her partner gives her 7 more nails. How many nails does Mia have now?
Drawing Area
Equation (with box)
__ + __ = \(\square\)
Final Answer
_________ nails
PROJECT: The Lumber Yard Draw • Label • Solve
Ben has 15 boards. He uses 6 boards for a shelf. How many boards are left?
Drawing Area
Equation (with box)
__ - __ = \(\square\)
Final Answer
_________ boards
Inspection Pass Exit Tickets
Inspection Pass
Project Assessment #1
Name:
The crew has 14 safety vests. They give 6 vests to new workers. How many vests are left?
Draw Your Blueprint
Equation with Box \(\square\)
___________________
Final Answer
_________ vests
Inspection Pass
Project Assessment #2
Name:
Worker Dan has 8 drill bits. He buys a box with 7 more bits. How many bits does he have now?
Draw Your Blueprint
Equation with Box \(\square\)
___________________
Final Answer
_________ bits
