Lesson 13
Problems with Missing Information
Lesson Purpose
The purpose of this lesson is for students to determine the information needed to solve problems involving weight.
Lesson Narrative
In this lesson, students solve problems involving weight in two Information Gap activities. They interpret descriptions of situations involving all four operations and in which one or more quantities are missing. Students determine the information that they need to answer the questions and then reason about the solutions.
- Representation
Learning Goals
Teacher Facing
- Determine information that is needed to solve measurement problems.
- Solve one-step word problems involving weight.
Student Facing
- Let’s find out what information is needed to solve problems about measurements at the fair.
Required Materials
Materials to Copy
- Info Gap: Pig Weigh-Off
- Info Gap Pumpkin Weigh-Off Cards
Required Preparation
Activity 1:
- Create a set of cards from the blackline master for each group of 2.
- Keep set 1 separate from set 2.
Activity 2:
- Create a set of cards from the blackline master for each group of 2.
- Keep set 1 separate from set 2.
CCSS Standards
Addressing
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 20 min |
| Activity 2 | 20 min |
| Lesson Synthesis | 5 min |
| Cool-down | 5 min |
Teacher Reflection Questions
In this lesson, students had a chance to revisit subtraction that required decomposing hundreds into tens and tens into ones. What strategies are most students choosing for this work?
Suggested Centers
- Number Puzzles: Addition and Subtraction (1–4), Stage 5: Within 1,000 (Supporting)
- Target Numbers (1–5), Stage 7: Subtract Hundreds, Tens, or Ones (Supporting)
Print Formatted Materials
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Additional Resources
| Google Slides | For access, consult one of our IM Certified Partners. |
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| PowerPoint Slides | For access, consult one of our IM Certified Partners. |