# Nat Burnett▸ U4: Math Connections

Multi-age Measurement Learning Experience

Year 1 Measure and compare the lengths and capacities of pairs of objects using uniform informal units (ACMMG019)

Year 2 Compare and order several shapes and objects based on length, area, volume and capacity using appropriate uniform informal units (ACMMG037)

Year 3 Measure, order and compare objects using familiar metric units of length, mass and capacity (ACMMG061)

Year 4 Use scaled instruments to measure and compare lengths, masses, capacities and temperatures (ACMMG084)

Rational for Investigation: Students in the early years often present with the misconception about comparing lengths when different units are used (for example measuring two different lines of the same length (one with small blocks and one with big blocks) – often children think the one measured with smaller blocks is longer as it takes more blocks to measure it.

Task: Children design a maze and children need to navigate different robots through the maze (e.g. Bee Bots, Dash, Spehro) – the discussion can be made is how far is Dot's step vs. Bee Bot's step – which will take more steps ( for older children they can look at the ratio of one Bee bot step is = to how many Dash steps) – if you don't have robots the same task can be done with children acting as the robots e.g. how big is Ben's step compared to Ella's – the kids can then think about how the human steps won't necessarily be consistent whilst the robots step is the same distance each time ( as long as everything is functioning properly)

Lesson 1 – design the maze

Lesson 2 – Investigating the size of the bee bots step

Lesson 3 – Planning the path and making preditions

Lesson 4 – Testing the path (then debugging as required)

Lesson 5 – Evaluation and reflection

#cserTask3 !

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