STEM Block-Based & Text Coding 5

Question 1

A high school STEM teacher introduces MicroPython on micro:bit to students who know Scratch. What is the primary new challenge students face?

Accepted Answer

Students must write syntactically correct text code without block scaffolding

Answer

Moving to MicroPython requires students to type syntactically precise text code, removing the scaffolding that block environments provide.

Question 2

Which instructional strategy best supports equity when teaching block-based coding to students with limited prior technology experience?

Accepted Answer

Use pair programming so experienced and novice students collaborate

Answer

Pair programming leverages peer learning and distributes knowledge, supporting equity by giving less-experienced students access to guided collaboration.

Question 3

In Scratch, a student creates a variable called 'lives' and sets it to 3, then decreases it each time a sprite touches an obstacle. This models which game design pattern?

Accepted Answer

Lives or health tracking

Answer

Decrementing a 'lives' variable on collision directly models the game design pattern of tracking a player's remaining lives or health points.

Question 4

What does the CSTA K-12 CS Standards mean by 'decomposition' as a computational thinking practice?

Accepted Answer

Breaking a complex problem into smaller, manageable sub-problems

Answer

Decomposition means breaking a large, complex problem into smaller sub-problems that are easier to design, code, and debug individually.

Question 5

A teacher uses Hour of Code activities to introduce coding. What is the primary curricular goal of these activities?

Accepted Answer

Provide a low-barrier entry point that builds interest and basic coding awareness

Answer

Hour of Code activities are designed as accessible, motivating introductions that spark interest in coding without requiring prior experience.

(STEM) Certified Science Technology Engineering Mathematics Educator Practice Test

(STEM) Certified Science Technology Engineering Mathematics Educator Practice Test

STEM Block-Based & Text Coding 5