Each page has four programs drawn as flow charts. A program starts at a number, then repeats two steps: it prints the number, then changes it by the rule. The code is right, but one or two numbers in its output came out wrong. Students run the code, circle each incorrect number, and write the number that should be there; the question says whether there is one wrong number or two. There are three levels: pages 1 to 4 are on grade level with all four operations; pages 5 and 6 are support pages that add and subtract within 100, with one wrong number each; pages 7 and 8 are a challenge, with bigger numbers, two wrong numbers in every program, and slips that look right at first, like swapped digits.
Debug the first program together: run the code one step at a time and compare each result with the output. Students can work in pairs, one running the code and one checking the output.
Ask your child to run the program out loud and touch each output box as they go. When the box does not match, that is the bug.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
Eight third grade worksheets where each number pattern comes from a simple program: start at a number, repeat, print the number, and add, subtract, multiply, or divide. The code is right, but one or two numbers in the output came out wrong. Students circle the incorrect numbers and write the numbers that belong there. Includes support, on-level, and challenge pages, color and black-and-white versions, and answer keys.
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