Using Guess, Check and Revise Main Subject Area: Mathematics
Duration of Lesson: 45 minutes Additional Subject Area
Standard(s): Students will use the guess and check method to
solve their problem. Students will test their answer using this
method with real coins. Coins Used in Lesson: Grade Level(s):
3-5 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 s