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Fishy Pri es
Overview
Children use clues to interpret mathematical relationships and work backward through
the clues to answer the questions.
Algebra
Represent quantitative relationships • Write and solve equations
Problem-Solving Strategies
Work backward • Use logical reasoning
Related Math Skills
Compare dollar amounts • Add basic facts • Subtract basic facts
Math Language
Cost, cost more, cost less • $ (dollar sign) • Greatest • How much? •
Least, less than • Most, more than • Price tag
Introducing the Problem Set
Make photocopies of “Solve the Problem: Fishy Prices” (page 11) and distribute to chil-
dren. Have children work in pairs, encouraging them to discuss strategies they might
use to solve the problem. You may want to walk around and listen in on some of their
discussions. After a few minutes, display the problem on the board (or on the overhead
if you made a transparency) and use the following questions to guide a whole-class dis-
cussion on how to solve the problem:
- What did Ima do first to figure out how much each fish costs? (She matched the tag
with the least price to the fish that cost the least.)
- Which fish costs the least? (Flash)
- How much does Flash cost? ($1)
- Which fish’s price tag can you figure out next? (Bronco)
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Algebra Readiness Made Easy: Grade 1 © Greenes, Findell & Cavanagh, Scholastic Teaching Resources