Session 1 — Pricing the Ingredients
Today you will be developing the context, laying out the terrain for the work of the next two days. After you introduce the situation and show the posters of the big dinner and the turkey in the grocery store, students will set to work figuring out the cost of a 24-pound turkey. As you move around the room supporting, encouraging, and conferring, you will notice that students use a range of strategies to determine the total cost of the turkey.
Developing the Context Jump to section →
- Tell the story of the big dinner.
- Ask students to figure out how much the 24-pound turkey will cost.
Supporting the Investigation Jump to section →
- Take note of the various strategies and struggles you see as students calculate the cost of the turkey.
Preparing for the Math Congress Jump to section →
- Ask students to make posters of their strategies.
- Begin to plan for a math congress that will support development of the use of more efficient strategies.
- The Big Dinner poster (Appendix A)Display ↗
- The turkey poster (Appendix B)Display ↗
- Money — various quarters, dimes, nickels, pennies
- Drawing paper — a few sheets per pair
- Large chart paper — one sheet per pair
- Markers
📋 Tomorrow's materials: student posters from today's investigation, chart paper for Math Congress set-up
Materials for the next session
- Students' posters from Session 1
- Sticky notes — one pad per student
- Markers
The ratio table
Partial products
Skip-counting
Repeated addition
Click a chip to view its definition.
This session supports development of big ideas, strategies, and models on the Landscape of Learning. Growth toward the standards below comes from sustained, monitored development of those same landscape items across many sessions all year, not from this session, or even this unit, alone.
3.OA.A.1
3.OA.A.3
3.OA.C.7
3.OA.D.9
3.NBT.A.2
3.NBT.A.3
MP1
MP3
Interpret products of whole numbers.
Use multiplication and division within 100 to solve word problems.
Fluently multiply and divide within 100.
Identify arithmetic patterns and explain them using properties of operations.
Fluently add and subtract within 1,000.
Multiply one-digit whole numbers by multiples of 10.
Make sense of problems and persevere in solving them — emphasized as students choose and revise strategies.
Construct viable arguments — emphasized as students prepare posters justifying their strategies.
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