Thursday 09.09.21 Maths

Learning Goal: I can estimate and measure food in grams. 

Today you are going to select 8 items within your pantry or fridge to estimate and weigh. When we buy items from the shops they usually display how heavy it weighs. This excludes the packaging, they only weigh the actual food inside. We normally pay for our fruit and vegetables by how much they weigh.

Food is measured in grams or kilograms. Today you are going to measure in grams. This will help with your estimations: 

A paper clip weighs 1 gram

1 litre of milk weighs 1000 grams 

2 eggs weigh 100 grams

First, Draw a table like the one below. You are going to select your 8 items of food to estimate and weigh. Don’t look at the weight on the packet. You’ll also need to select some fruit and vegetables to weigh because we want you using your kitchen scales at home. Here are some examples of items you may select. 

Item 2 bananas 3 apples 2 oranges A bag of potatoes A bag of sugar A loaf of bread A bag or block of cheese
Estimate weight 500 grams 300 grams 2,000 grams
Actual weight 369 grams 415 grams

template:

Next, you are going to hold each item in your hands one by one. Make an estimation of each item. How much do you think it weighs? If you think it’s heavier than 1000 grams, estimate over 1000 grams. If you think it’s under 1000 grams, estimate below 1000 grams. 

Then, you are going to measure and weigh each item on some kitchen scales. You might need to ask a parent or caregiver how to use them. Fill in the ‘actual weight’ section of the table. I have attached a photo how to measure weight using kitchen scales. 

Finally, compare your estimations to the actual weight of your items. Were you close? 

Challenge: You might like to complete the same activity again. This time you have the knowledge of weight. Your estimations might be closer than the first time. 

2 thoughts on “Thursday 09.09.21 Maths”

    1. Hi Stefan, the blog is a great place to share comments and ideas, but remember that the teachers can’t always get to the blog posts during the day but they will see your emails and. The best way to get help is to email your teacher – or even better, join their open Webex at 12:00 to talk about the tasks and any help you might need!

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