Think Like a Scientist Four activity books · ages 3 to 6
Light Minds Lab
Ages 4–6 · 6 sheets · free PDF

Six bonus coding sheets, not in the book

Six sheets in the book's formats with grids and codes the book does not print: read a three-arrow code, predict whether a five-arrow code lands, write the code for a drawn path, pick the one of three codes that works, find the wrong step in five, and shorten six arrows to two loops. None of them is a page of the book. Every code was run by the same simulator the book uses, so what the sheet says lands, lands.

US Letter · 6 pages · black and white · no signup

What is on the sheets

Bonus sheet 1 of 6, not in the book: Read the code. Draw the path.
Bonus sheet 1Not in the bookRead the code. Draw the path.
Bonus sheet 2 of 6, not in the book: Read the code. Draw the path.
Bonus sheet 2Not in the bookRead the code. Draw the path.
Bonus sheet 3 of 6, not in the book: Write the code.
Bonus sheet 3Not in the bookWrite the code.
Bonus sheet 4 of 6, not in the book: Circle the code that works.
Bonus sheet 4Not in the bookCircle the code that works.
Bonus sheet 5 of 6, not in the book: Find the bug. Fix it.
Bonus sheet 5Not in the bookFind the bug. Fix it.
Bonus sheet 6 of 6, not in the book: Make this code shorter.
Bonus sheet 6Not in the bookMake this code shorter.

Print at actual size (100%), not "fit to page". The target sizes on these pages are chosen for a particular age of hand, and scaling shrinks them.

Using them well

Circle the prediction first

On the two read-the-code sheets the child circles where the robot will land before drawing. Sheet 2 misses, and finding that out is the page.

Trace every code on sheet 4

Three codes, one grid. Have them run A, B and C with a finger. Two of the three stop one square from the battery.

Do not point at step four

On the bug sheet, ask which steps they have checked. The finger leaves the path at step four, and they should be the one to notice.

Questions

What is bonus material?

Sheets made for this site with the tools that made the book, and not printed in it. They carry the Light Minds Lab mark and this address instead of a page number.

Are these in the book?

No. The formats, the robot, the grid and the arrow key are the book's. Every code and grid here is new.

What age are they for?

Four to six, like the book. Sheets 1 and 3 suit a four-year-old; the bug and the loops are for five and six.

Do these need a computer?

No. Nothing on them connects to anything. Arrows, a grid, a pencil.

Where these came from

These 6 are not in the book.

Sequences, loops, conditionals and debugging, written in arrows on paper. No app, no tablet, no login. A locked symbol set of arrows and a grid. The child reads a code and traces it, then writes a code of their own, then shortens it with a loop, then finds the one wrong step in a code that does not work.

Cover of Coding