Lesson Plan
Using Guess, Check and ReviseMain Subject Area: Mathematics Duration of Lesson: 45 minutes Keywords:
Brief Description:
National Standard(s):
Additional Subject Area Standard(s): Objectives:
Students will use the guess and check method to solve their problem. Students will test their answer using this method with real coins. Materials (online): Materials (offline):
Math Journals Coins Used in Lesson:
Grade Level(s): 3-5 Procedures (online): Procedures (offline):
2. First, solve this problem together as a class: How many different combinations of the coins (nickels, dimes and quarters) can make 50 cents? You must use at least one of each coin. 3. Have students make a guess and write several guesses on the board. 4. Write out the specifics of the problem: Need to make 50 cents Can only use nickels, dimes and quarters Must use at least one of each coin 5. Work with your students to develop a chart with the possible solutions. There will only be two solutions for this problem (1 quarter 2 dimes and a nickel; 1 quarter, 1 dime and 3 nickels). Students can then revise their answer based on the chart. 6. Now give students a problem to solve on their own. They can use the same method you did as a class. They can record the steps in their math journal. Here is a sample problem: How many different combinations of the coins (nickels, dimes and quarters) can make $2.25? You must use 17 coins. Assessment / Evaluation:
Differentiated Learning Options:
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