Decimals, fractions, order of operations, geometry & volume
Start →Solar system, atoms & molecules, ecosystems, engineering
Start →Vocabulary, literary analysis, informational text, grammar
Start →American Revolution, U.S. Government, westward expansion
Start →Logic, number theory, probability & critical thinking
Start →Flashcards, journal & goal setting
Start →5th grade math olympiad problems combine multiple skills. Here are powerful strategies:
Solve these creative problems. Think carefully!
Competition-style problems to sharpen your problem-solving skills! These are harder than regular questions.
How many arithmetic problems (including decimals!) can you solve in 60 seconds?
Take turns solving math problems with a friend. Who can get more right?
Adding/Subtracting: Find a common denominator, then add/subtract numerators.
Multiplying: Multiply numerators together, multiply denominators together, then simplify.
Dividing: "Keep, Change, Flip" — keep the first fraction, change ÷ to ×, flip the second fraction.
Solve these fraction problems. Enter your answer as a fraction (like 5/6) or a decimal. Equivalent fractions are accepted.
In 5th grade, you need to understand place value all the way to thousandths:
Part A: Decimal operations and place value.
Part B: Order of operations & expressions (5.OA).
A coordinate plane has two axes: the x-axis (horizontal) and y-axis (vertical). A point is written as (x, y).
Volume = Length × Width × Height. Measured in cubic units (cm³, ft³, etc.).
One bonus brain-buster each day for extra stars!
Get a fresh word problem to solve!
Our solar system has 8 planets orbiting the Sun, held in place by gravity — the force that pulls objects toward each other.
Key facts:
Everything in the universe is made of atoms — tiny particles too small to see. When atoms bond together, they form molecules.
Energy flows through ecosystems in a food chain:
Click an item to select it, then click the correct bucket to place it. Click a placed item to remove it.
Challenge: Build the tallest free-standing tower using only 20 sheets of paper and tape.
Ask: How can I make a tall, stable structure from paper?
Imagine: Sketch 2-3 different designs. Think about triangles and cylinders for strength.
Plan: Choose your best design. What shapes will you use? How will you connect pieces?
Create: Build your tower! You have 15 minutes.
Improve: Measure your tower's height. What would you change to make it taller or stronger?
💡 Engineering principle: Triangles are the strongest shapes in engineering because they distribute force evenly. Cylinders (rolled paper tubes) resist compression. Real engineers use these same principles in skyscrapers and bridges!
Write your observations:
When you find an unknown word, use these strategies:
Common Greek/Latin Roots:
When reading nonfiction, ask yourself:
Write a short persuasive paragraph (5-7 sentences): Should students be allowed to choose what they learn in school? Use at least one piece of evidence to support your argument.
In the 1760s-1770s, the 13 American colonies grew frustrated with British rule. Key events:
The Constitution created our government with three branches:
Each branch has specific powers designed to prevent any one group from becoming too powerful:
Which branch of government is responsible?
Fill in the crossword using the clues below.
Imagine you are a pioneer traveling west on the Oregon Trail in the 1840s. Write a diary entry (5-8 sentences) describing your journey. What challenges do you face? What do you see?
Why did the Founders create a system of checks and balances? Write 3-4 sentences explaining why no single branch should have all the power.
Advanced logic problems require you to combine multiple clues and think systematically.
Strategy: Make a chart or list to track what you know and eliminate possibilities.
Use reasoning and elimination to solve these challenges!
Test your knowledge of primes, factors, and multiples!
Probability = favorable outcomes ÷ total outcomes
Figure out the chances and count the possibilities!
These puzzles require creative problem-solving!
Pick a concept to learn. Lessons explain the idea, walk you through examples, and check your understanding.
Review the questions you got wrong. Click a card to flip it!
One thing I learned in Math:
One thing I learned in Science:
One thing I learned in Reading & ELA:
One thing I learned in Social Studies:
One thing I learned in Brain Puzzle:
One thing I thought was cool:
One thing I still wonder about:
What topic do you want to explore more?