Teaching Resource
The Detective, Hard at Work - Find the Mistake with All Operations
PDF | 10 pages|Grades: 3 - 4Find the Mistake! – All Operations
Each of the problems has been solved, but the solutions contain mistakes! Students find the mistakes and then explain and correct them. Errors include:
- answering the wrong question
- making an arithmetic error
- choosing the wrong operation
- using one operation when two is needed to solve the problem
- labelling the answer incorrectly
- using the extra information in the solution.
8 problems include whole numbers and all operations.
Use during guided maths, during tutoring or intervention, with small groups or in centres.
This activity includes clear and concise teacher directions, an answer key and conversation starters that give students what they need to have meaningful academic discussions.
Australian Curriculum alignment
- ACMNA053
Apply place value to partition, rearrange and regroup numbers to at least 10 000 to assist calculations and solve problems
- ACMNA073
Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems
- ACMNA076
Develop efficient mental and written strategies and use appropriate digital technologies for multiplication and for division where there is no remainder
- ACMNA057
Represent and solve problems involving multiplication using efficient mental and written strategies and appropriate digital technologies
TeachTransform creates fun math activities that get students involved in real math. We bring decades of education experience to the task, and we believe that students learn best when teachers and students are having fun.
Find more resources for these topics
MathsOperationsAdditionDivisionMultiplicationSubtractionProblem-SolvingWorksheetsTask CardsPuzzlesWord ProblemsOne-step ProblemsTwo-step ProblemsMaths Group ActivitiesStory ProblemsGuided MathFind the Mistake
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