What kind of classroom object makes a reliable landmark for tracking a rolling ball?

Where is the ball compared with the box?

Using the box as a landmark, describe the cat's position.

Lito walks toward the classroom door. How does his position change compared with the door?

Maya was 1 meter from a chair. Now she is 3 meters from it. Describe her new position.

A chair moves while a ball stays still. Their positions compared with each other can change.

With your hand stretched wide, what two points mark one hand span?

What two points mark one foot span?

Ben's hand spans are larger than Carlo's. Who needs fewer spans to cover the same path?

Each segment represents one hand span. How many spans cover the marked distance?

Rosa places hand-span lengths as shown. What should she change to measure correctly?

Rosa and Ben each measure ten foot spans. Can you tell whether their paths are equally long?

What quantity does a ruler measure along a marble's path?

Which tool can follow a curved marble path to measure its length?

Why can classmates compare measurements more easily when everyone uses centimeters?

Where should a ruler's zero mark go when measuring a marble's straight journey?

The toy car started at zero. How far did it travel along the measuring tape?

Paolo measures the same marked path three times and gets very different readings. What should he do?

On the same level floor, how does a harder push usually affect the same toy car's travel?

Mila pulls the same cart for the same time. How can she increase its travel on the same floor?