STEM Block-Based & Text Coding 3

Question 1

A teacher assigns students to create a Scratch quiz game that tracks a score. Which type of block is essential for storing the running score?

Accepted Answer

Variable block

Answer

Variable blocks store and update data like a running score, making them essential for tracking changing values in a program.

Question 2

Which pedagogical approach is most effective when teaching the transition from block-based to text-based coding?

Accepted Answer

Show side-by-side comparisons of block and equivalent text code

Answer

Side-by-side comparisons help students map familiar visual blocks to their text equivalents, reducing cognitive load during the transition.

Question 3

In a STEM classroom, a student writes a Python function that calculates the area of a rectangle. What block-based concept does this most directly correspond to?

Accepted Answer

A custom block in Scratch

Answer

Custom blocks in Scratch define reusable procedures, which directly correspond to defining functions in Python.

Question 4

What does 'computational abstraction' mean in the context of teaching block-based coding?

Accepted Answer

Hiding implementation details to focus on what a block does

Answer

Computational abstraction means hiding implementation details so users can use a block by knowing what it does, not how it works internally.

Question 5

A student's Scratch animation runs too quickly and the teacher asks them to slow it down. Which block should be added inside the loop?

Accepted Answer

wait 1 seconds

Answer

Adding a 'wait' block inside a loop introduces a delay between iterations, slowing down the animation to a visible pace.

(STEM) Certified Science Technology Engineering Mathematics Educator Practice Test

(STEM) Certified Science Technology Engineering Mathematics Educator Practice Test

STEM Block-Based & Text Coding 3