Name: Find the Hidden Number - Year 3
Brand: Sukindi Learning
Price: 4.99 AUD
Availability: InStock

Find the Hidden Number - Year 3

$4.99

Preview Resource

Curriculum

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Australian Curriculum v9.0

AC9M3A01 recognise and explain the connection between addition and subtraction as inverse operations, apply to partition numbers and find unknown values in number sentences

Modifications

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Finding a missing number is easier when students know what the whole represents. This unit guides Year 3 learners through unknowns in different equation positions, beginning with models and guided decisions before moving to mixed practice, a partner challenge and an independent assessment. Students explain their choice and check a result rather than relying on a keyword rule.

The teaching sequence spans five 45–60-minute lessons. Start with 27 + ? = 64 and ? − 27 = 37 to discuss the whole and known part. Model how subtraction finds a missing part and how combining parts finds a missing whole. Students then compare related equations, repair a reversed-subtraction claim and apply the method to fresh values. The teacher guide includes equipment, access options, keys and marking guidance.

What's included

26-page unit-plan PDF with contents and three-page teacher guide.
Colour part–whole display and 12 model cards.
Three practice sheets, two rehearsal sheets and one assessment, each followed immediately by a matching red-answer page.
Partner-game instructions and 12 challenge cards.
Criterion-based rubric with space for evidence and a next teaching step.
Editable 18-slide PowerPoint teaching presentation.
Editable 26-slide PowerPoint question-and-answer quiz.
70-page watermarked Preview PDF.

Learning focus

Identify the whole and known part; find missing addends, subtrahends and minuends; justify answers with a model or inverse relationship; check a result in the original equation.

Classroom use

Five lessons of approximately 45–60 minutes. Use counters, tiles or part–whole mats for supported work, then move to mixed practice, paired reasoning and independent assessment.