Task
"Hoo — now here's a good project," says Ollie. Bo and Ollie are mapping Burraga Hollow: measuring it, sharing it fairly, looking closely at its shapes, and counting what lives there. Work carefully and explain your thinking.
Part A — Fair shares (fractions & decimals)
1. Mae cuts a damper loaf into quarters. Colour three-quarters and write it as a fraction:
2. Write a fraction equal to 1/2: Write 3/10 as a decimal:
3. Mark 1 1/2 on this number line (sketch the line 0 to 3 and the point).
Part B — Measuring the bush (measurement & time)
4. Bo measures a log with a scaled ruler. It is 1 metre and 35 centimetres long. How many centimetres is that altogether?
5. The friends leave the log at 9:15 am and reach the creek at 10:05 am. How long did the walk take?
6. Use Ollie's Looking Glass squares to estimate the area of this leaf in informal square units.
Part C — Looking closely (shape & angles)
7. Bo splits a square along its diagonal. What two shapes does he make?
8. Tick the angle that is smaller than a right angle, and sketch your own angle bigger than a right angle.
Part D — Counting the Hollow (data & chance)
9. The friends counted creatures by the creek. Draw a column graph of the data, where each square = 2 creatures: frogs 8, lizards 6, birds 10.
10. Biscuit's basket has 9 brown gumnuts and 1 green one. Without looking, is it likely or unlikely to pull out the green one? Explain why.
Rubric criteria (weights as a percentage of this assessment)
| Criterion | Weight | Descriptor |
|---|---|---|
| Measurement & time | 30% | Measures and compares using scaled instruments and informal area units, converts time and finds duration (Part B). |
| Data & chance | 25% | Represents data in a column graph and reasons about the likelihood of chance events (Part D). |
| Fractions & decimals | 25% | Represents equivalent fractions, places fractions on a number line, and connects fractions to decimals (Part A). |
| Shape & angles | 20% | Combines/splits shapes and compares angles to a right angle (Part C). |