Reasonix MAC™ · Grade 5
Grade 5 — Decimals and Variables
A place value box and a variable are the same idea: a named store.
Grade 5 at Reasonix MAC: decimal place value, comparing decimals, angles, and variables that hold score, lives and answers. Interactive and bilingual.
The three bridges in this grade
Mathematics
Decimal place value, ordering decimals, types of angles
Algorithms
State: store a value, read it, change it
Coding
set score to 0 · change score by 1 · ask and wait
Try it right now
Move it, click it, and watch the maths, the algorithm and the code change at the same moment.
y = 3·4 + 2 = 14
MATH
The rule y = m·x + b. At x = 4, y = 14. Increase x by 1 and y grows by 3.
ALGO
A function: one input, fixed steps, one output — then a condition decides what happens next.
CODE
define rule (x) → report 3 * x + 2
if rule(4) > 20 [ say "big" ] else [ say "small" ]
Grade 5 lessons
- 1Decimal Place Value
- 2Comparing & Ordering Decimals
- 3Types of Angles
- 4What is a Variable?
- 5Set vs. Change
- 6Ask and Store the Answer
- 7Quiz Game with Score
- 8Attempts Counter + Lives