• I can use words like tall, short, wide, long and high to describe length

• I can use the words heavy and light to describe mass

• I can connect the right word to the right attribute when describing an object

Success Criteria

Lesson 1: Naming the Attribute

We are learning the words that describe length, mass, capacity and duration.

• I can compare two objects side by side to say which is longer or shorter

• I can use a technique such as standing back to back or lining up the base of two objects to compare length

• I can explain how I know which object is longer

Success Criteria

Lesson 2: Comparing Length Directly

We are learning to compare two objects directly to say which is longer or shorter.

• I can heft two objects, one in each hand, to compare their mass

• I can say which of two objects is heavier or lighter

• I can explain my reasoning for which object is heavier

Success Criteria

Lesson 3: Comparing Mass Directly

We are learning to compare two objects directly to say which is heavier or lighter.

• I can start two events at the same time and watch which finishes first

• I can say which event took longer and explain why

• I can use familiar language such as "I took longer because..." to reason about duration

Success Criteria

Lesson 4: Comparing Duration

We are learning to compare two events to say which one takes longer.

• I can compare two containers to say which holds more

• I can use materials such as sand, rice or water to test which container holds more

• I can decide for myself whether length, mass, capacity or duration is the right way to compare a new pair of objects

Success Criteria

Lesson 5: Capacity & Mixed Review

We are learning to compare capacity, and to choose the right attribute to compare two objects.