If-then blocks: what does Olly say?: coding worksheet for Grades 3–4, page 1 preview

Coding worksheet · Coding

If-then blocks: what does Olly say? · Grades 3–4

Read 5 short block code programs about if-then-else choices and work out by hand what each one prints or the final value of a variable. Builds careful code tracing.

Grades 3–4 · ages 8 to 10
Easy
10 to 15 minutes
1 page
Free

The answer key is a separate page for grown-ups. Sign in to download it.

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The programs to trace

Directions: Read each program from top to bottom, one block at a time. Keep track of every box (variable) as it changes, then write the answer.

1 How many coins at the end?
set coins to 6 if coins = 6 then change coins by 5 else change coins by 2
coins =
2 What does Olly say?
set count to 0 for each n in [7, 3, 6, 1] if n > 7 then change count by 1 say count
3 What does Olly say?
set kites to 6 change kites by 3 if kites < 3 then say "warm"
else say "cold"
4 What is big at the end?
set a to 13 set b to 9 if a > b then set big to a else set big to b set big to big * 2
big =

What your child practices

Your child builds careful code tracing. The skill is “Conditions”: use if/else to respond to situations.

Grades and ages: Grades 3–4, ages 8 to 10
Time: About 10 to 15 minutes
Subject: Coding
Level: Easy for Grades 3–4
Answer key: Yes, for grown-ups who sign in
Printing: 1 page, US Letter or A4, low-ink option
Updated: October 15, 2026

How to use it

Work through the first program together, one line or arrow at a time. Then let your child work through the rest, showing their thinking on the page. It is one of the easier sheets for Grades 3–4, good as a warm-up or a first look at the skill.

An answer key comes with it as a separate page that grown-ups download after signing in.

Tip for grown-ups: Have your child write each variable's value beside its line as they trace.

Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.