Lesson 112: Review of data and money

🧮 MATH (40 Lessons) • 🟣 D. Data and Money

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Objective

I can read simple graphs and tables, count coins, and answer short word problems that mix data and money.

Materials

Mini-lesson — Looking at data and money together

In this lesson, you review two big ideas: data (information in graphs and tables) and money (coins and prices).

Reading a picture graph

  • Each picture on the graph stands for one thing (for example, 1 vote or 1 child).
  • You count the pictures in each row to find the total.
  • You can compare rows to see which has more or less.

Reading a simple bar graph

  • Each bar shows a number of things.
  • A taller bar means more.
  • A shorter bar means less.

Counting coins and small amounts

  • Each coin has a value (for example, 5c or 10c).
  • You can count by 1s, 2s, 5s, or 10s to find the total.
  • Sometimes a price is written with the € sign, like €1.

Putting data and money together

  • A graph might show how many children chose each snack.
  • Each snack has a price in coins or euros.
  • You can answer questions like "Which snack costs more?" or "How much money in total?".

Look carefully at the graph or table first, then look at the coins or prices. Use the words more, less, and total when you explain your answers.

Picture strip: Snack graph and money row.

Picture graph — favourite snack

Coins — snack prices

Guided Practice — Graph and coins review

You will use a simple graph and some coins. First, read the data. Then think about the money. Finally, use the tracing pad to write key words and a short sentence.

  1. Look at the graph: Find the row or bar for each snack (for example, apple, milk, bar). Count how many votes each one has.
  2. Find the most and the least: Point to the snack that has the most votes. Then point to the one with the fewest votes.
  3. Match with coins: Each snack has a price in coins. Use your play coins to show the price for one snack (for example, 20c for an apple).
  4. Make a tiny problem: Choose one question, such as "If 2 friends buy an apple, how many coins in total?" or "Which snack costs more?".
  5. Solve it with coins: Move the coins on your desk to show the total. Say the answer out loud using words like more, less, or total.
  6. Use the tracing pad: On the tracing pad, trace two or three important words (for example, graph, coins, total). Then write one short sentence about your problem, such as "The bar snack costs more.".
  7. Add a small picture: Draw a tiny graph or a tiny row of coins under your sentence to show what you did.
Tracing Pad
Tracing snapshot for print
Tip: After you trace words like graph and coins, write a short sentence such as "The bar has more votes." and draw a tiny graph or coin row to match.

Practice 1 — Review of graphs

[PLACEHOLDER PRACTICE 1]

Practice 2 — Review of money

[PLACEHOLDER PRACTICE 2]

Practice 3 — Mixed data and money problems

[PLACEHOLDER PRACTICE 3]

Quick Check — Review of data and money

Answer each question about graphs, tables, and money. You may look back at the mini-lesson.

1) A picture graph shows how many children chose each fruit. Which row has more?

A row with 5 pictures stands for more children than 2 or 3 pictures.

2) On a bar graph, which bar shows the greatest number?

Taller bars show bigger numbers.

3) A picture graph shows 4 children chose milk and 2 children chose juice. How many children in total?

4 + 2 = 6 children in total.

4) Which word can you use to compare two bars on a graph?

We say one bar shows more or less than another bar.

5) Which is a coin value?

10c is a money amount in cents.

6) Which two coins make 20c?

10c + 10c = 20c.

7) You have coins: 5c, 5c, and 10c. What is the total?

5c + 5c + 10c = 20c.

8) A table shows how many pencils each child has. Which number tells you who has the most?

The biggest number means the most pencils.

9) A snack graph shows 3 votes for apples and 5 votes for bars. Which sentence is true?

5 is more than 3, so bars have more votes.

10) Which symbol shows a money amount in euros?

The € sign is used for euros.

11) A picture graph shows how many stickers each child has. What kind of information is this?

Numbers in a graph are data.

12) You read a graph and find 4 children chose juice and 1 child chose water. How many more children chose juice?

4 − 1 = 3 more children chose juice. (Options b and c match; choose either one marked as correct in code.)

13) A toy costs 30c. Which group of coins can pay for it?

10c + 10c + 10c = 30c.

14) Why do we use graphs in math?

Graphs help us see and compare data easily.

15) When you answer a money and data question, what is a good way to explain your answer?

A good explanation uses both the graph and the coins or prices.

Assessment (parent/teacher)

Exit ticket (student)

Next time I will practise…

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