Geometry and Measurement Activities

Composite Class — Year 1–6 | Te Mātaiaho Maths

Name / Igoa:

Date / Aso:

Year Level:

🎯 WALT / O Le A La Matou A'oa'oina

Phase 1 (Yr 1–3): We are learning to name and describe 2D and 3D shapes.
O le a la matou a'oa'oina: Fa'aigoaina ma fa'amatala fomu 2D ma 3D.

Phase 2 (Yr 4–6): We are learning to classify shapes, measure perimeter, and identify types of angles.

✅ Success Criteria / Fa'amaonia

Phase 1 (Yr 1–3):

I can… / E mafai ona ou…

☐ Name a triangle, square, circle, and rectangle. (Fa'aigoaina le tapatoru, tapawhā, lapotopoto, ma le fa'aafiafi.)
☐ Say how many sides and corners a shape has. (Taua le aofa'i o itu ma tulimanu.)
☐ Find a shape in the classroom. (Su'e se fomu i totonu o le vasega.)

Phase 2 (Yr 4–6):

☐ Classify 2D shapes as polygons, triangles, or quadrilaterals.
☐ Measure and calculate the perimeter of a polygon in centimetres.
☐ Identify angles as acute, right, obtuse, or reflex.

🔷 Part 1: Shapes — Phase 1 (Year 1–3)

Fa'aoga Samoan ma English / Use Samoan and English

1. Draw a line to match the shape to its name. / Fa'atusa le fomu i lona igoa.

Triangle / Tapatoru 🔺

Square / Tapawhā 🟦

Circle / Lapotopoto ⭕

Rectangle / Fa'aafiafi 🟩

4 equal sides — itu tutusa e 4

No corners — leai ni tulimanu

3 sides — itu e 3

2 long, 2 short sides — itu umi e 2, pupuu e 2

2. How many sides does each shape have? / E fia itu o ia fomu taitasi?

Triangle / Tapatoru: ______ Square / Tapawhā: ______ Rectangle / Fa'aafiafi: ______

3. Circle the 3D shapes below. / Siakasi fomu 3D i lalo.

Sphere / Polo

Triangle / Tapatoru

Cube / Pusa Tapawhā

Circle / Lapotopoto

4. 🌟 Extension (Yr 3): Find one 3D shape in your classroom. Draw it and label its faces, edges, and vertices.

📐 Part 2: Geometry & Measurement — Phase 2 (Year 4–6)

5. Classify each shape. Write the correct name from the word bank.

Word Bank: Equilateral Triangle | Scalene Triangle | Rectangle | Hexagon | Rectangular Prism

a) A triangle with all sides equal: _______________________

b) A polygon with 6 sides: _______________________

c) A 3D shape with 6 rectangular faces: _______________________

d) A triangle with no equal sides: _______________________

6. Identify the angle type. Write acute, right, obtuse, or reflex.

a) 45°: _________________ b) 90°: _________________ c) 130°: _________________ d) 210°: _________________

7. Measure the perimeter. A rectangle is 8 cm long and 5 cm wide.

Estimate first: approximately _______ cm

Perimeter = _______ cm

8. A triangle has sides of 6 cm, 9 cm, and 7.5 cm. Calculate its perimeter.

Perimeter = _______ cm

9. Select ALL that are true about a square. (Tick all that apply.)

It has 4 equal sides

All angles are 90° (right angles)

It is a type of triangle

It is a regular polygon

It has 5 vertices

10. 🌟 Extension (Yr 5–6): On the grid below, draw an irregular pentagon. Label each side length in centimetres and calculate the total perimeter. Then identify and label one acute and one obtuse angle.

Total Perimeter = _______ cm

11. Reflection: How does knowing the angles of a shape help you understand it better? Use maths vocabulary in your answer (e.g., acute, vertex, polygon, tapatoru).

📝 Differentiation Notes for Teachers

Support (Yr 1–3 / Phase 1): Provide shape cut-outs and tracing paper. Use bilingual labels (English/Samoan). Allow students to point to or draw answers rather than write.

Core (Yr 4–5 / Phase 2): Use rulers to measure given shapes. Provide a protractor reference card showing 90°, 180°, and 360° benchmarks.

Extension (Yr 6 / Advanced): Explore nets of 3D shapes, calculate area of irregular polygons on grid paper, or investigate angle sums in polygons (e.g., triangle = 180°, quadrilateral = 360°).

💡 Cultural Connection: Look for geometric patterns in tivaevae (Cook Islands quilts) or Samoan siapo (tapa cloth). Can you find any polygons, lines of symmetry, or angle types?