Before you can decide if a question is statistical (it expects lots of different answers), you need to be comfortable collecting and counting data — making tally marks, counting up a list, and reading a simple bar graph. Warm those up and statistical questions click.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 A small line you draw to count one thing.
Example: Four lines and one slash across them means 5.
Level 1 To find how many things there are, one at a time.
Example: Count the pencils: 1, 2, 3 means there are 3.
Level 1 To put numbers together to find the total.
Example: 3 + 4 + 2 adds up to 9.
Level 1 A picture that uses bars to show how many of each thing.
Example: A taller bar means more: Dogs = 5 is taller than Cats = 3.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. How many tally marks are here: |||| | (a group of 4 plus 1 more)?
2. What is 3 + 4 + 2?
3. A bar graph shows: Dogs = 5, Cats = 3. How many more dogs than cats?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 8-1 →