Maths
Y5: choosing appropriate metric units
Y6: converting between metric units
Y5: choosing appropriate metric units
Y6: converting between metric units
Learning Intension: We are learning…Introduce students to the concepts of capacity (litres/millilitres) and mass (kilograms/grams) and how they are measured.
Hook
Keys to Success
Place posters around the room labeled- mm,cm,m,km, ml, L, KL, mg, g, kg
Students can go around to each poster and provide examples of where they have seen these terms used, examples (products), experiences (cooking, sports.
Mini Lesson
Discuss real-life examples of measurements (e.g., height in cm, water in L, weight in kg).
Ask students to share where they see capacity and mass used in everyday life (e.g., food packaging, cooking, sports). Discuss posters
Independent
Group Sorting: Give students unit cards (e.g., mm, cm, km, kg, L) and have them sort them into categories (length, mass, capacity).
Once students have placed the cards in the correct measurement they will need to sort them from smallest length, capacity & mass to largest.
Reflection
Go through as a class
Learning Intension: Students will explore real-world applications of mass (g, kg) and capacity (mL, L) by "shopping" from catalogues, making comparisons, and solving problems.
Hook
Keys to Success
Mini Lesson
Tell students they are planning a big party or family event and need to shop for food and drinks.
They have a budget of $50 to buy at least five items that include both mass (kg/g) and capacity (L/mL).
Each item must include its price, weight (mass), or volume (capacity) from the catalogue.
Independent
Students browse catalogues to create a shopping list, writing down:
Item name
Mass (g/kg) or Capacity (mL/L)
Price
Challenge Questions (while they shop):
Find a drink over 1L. What is its total cost if you buy three?
Choose a fruit or vegetable under 500g. How much would 2kg cost?
Can you find a 5kg bag of something? What does it cost per kg?
Convert units (e.g., 500mL = 0.5L, 250g = 0.25kg)
Find the best deal (e.g., Is a 2L juice for $3.50 better than a 1.25L for $2.80?)
Check their total cost (Did they stay under $50?)
Reflection
Learning Intension: We are learning…
Students will create a simple Easter treat while practicing mass (g/kg) and capacity (mL/L) measurements.
Hook
Keys to Success
Mini Lesson
Teacher models converting between units of measurement.
To convert between mass and capacity units:
1 kilogram (kg) = 1,000 grams (g)
1 liter (L) = 1,000 milliliters (mL)
To convert from kg to g, multiply by 1,000.
To convert from g to kg, divide by 1,000.
To convert from L to mL, multiply by 1,000.
To convert from mL to L, divide by 1,000.
For example:
2.5 kg = 2,500 g
Independent
Convert units (e.g., 500mL = 0.5L, 250g = 0.25kg)
Find the best deal (e.g., Is a 2L juice for $3.50 better than a 1.25L for $2.80?)
Check their total cost (Did they stay under $50?
Reflection
What was your best bargain?
What surprised you about the weight or volume of an item?