# Estimating masses

In this lesson, we will use prior knowledge to estimate masses and then work out any differences compared to the actual mass.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is 5kg in grams?

1/5

Q2.What is the correct language to describe the mass of this parcel?

2/5

Q3.How much does this parcel weigh?

3/5

Q4.What is the mass of Pepper the purple cat?

4/5

Q5.What is the mass of the sad pug?

5/5

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is 5kg in grams?

1/5

Q2.What is the correct language to describe the mass of this parcel?

2/5

Q3.How much does this parcel weigh?

3/5

Q4.What is the mass of Pepper the purple cat?

4/5

Q5.What is the mass of the sad pug?

5/5

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Estimating masses

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.5000g or 5kg. Which mass is heavier?

1/4

Q2.What statement describes this picture best?

2/4

Q3.Use the image below to choose the best estimate for the mass of the parcel.

3/4

Q4.Find the difference

4/4

Quiz:

# Estimating masses

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.5000g or 5kg. Which mass is heavier?

1/4

Q2.What statement describes this picture best?

2/4

Q3.Use the image below to choose the best estimate for the mass of the parcel.

3/4

Q4.Find the difference

4/4

# Lesson summary: Estimating masses

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga