During the last few weeks, I have shared geometry activities that focused on vertices and sides. JDaniel got make geometry aliens and explore geometry riddles with LEGO at home to re-enforce the skills he was working on at school. If he was working on geometry at school and it made sense to review those concepts at home. Now he is moving on to fractions at school so, we have moved on to them too. Today’s activity uses LEGOS to play fraction games.

**Disclaimer:**

We have tons of LEGOS at home! (So many LEGO that I made him a special LEGO storage bucket.) We are using them a lot to review and learn skills. If you have tons of blocks, you might want to use them for this activity instead.

## How We Put the Workspace Together:

**Supplies**

- Base plate
- A lot of 1×8 LEGOS
- A lot of 1×4 LEGOS
- Index cards
- Magic Marker

**The link below is an affiliate link.**

**Tip:**

We accumulated a lot of LEGO by purchasing an assortment of LEGO with 884 Pieces in a box.

**Steps**

- We created six towers using three 1×8 in each.
- The three towers were placed in two rows.
- A single 1×8 was placed two rows in front of each tower.
- This created an index card display space.
- With the workspace completed I wrote various fractions of small pieces of index cards.

## Playing the Fraction Games

I laid the fraction cards out on the kitchen table along with a bowl of 1×4 LEGOS. JDaniel was asked to select a fraction and place in it a card holder. Then he was asked to display that fraction.

He chose to display some of the fractions horizontally and some vertically. We talked about how it really didn’t matter how the LEGOS were displayed. What mattered was that they displayed the right fraction!

## Fraction Game Alternatives

After he had finished the two rows of fractions, he decided that it would be fun to build the fraction and have me find its fraction card.

This would be fun for two children to play or an adult and child as we did.

**Here are several more fraction game ideas we tried out:**

**Vertical Fractions**

We displayed our fractions flat on the base plate. Children could display the fractions in towers if they like. There really isn’t a wrong way to play these fraction games.

**Opposite Fraction**

After we created the fraction displayed in bricks based on the card, we talked about what the other fraction displayed. The first fraction displayed in the first row of this picture showed three fifths of the bricks as blue, but what fraction was displayed by the red bricks? It displayed the fraction two fifths.

**Reducing Fractions**

If you had a larger base plate to work with, you could work on larger fractions. If you worked on larger fractions, you could then talk about reducing the fractions to their lowest terms.

JDaniel noticed that one half and two fourths were the same when we worked on building the fractions. The LEGO fraction display made it easier to see that relationship. I think working with bigger fractions will do that with many fractions.

**Call the Color of the Numerator**

If you are ready to go into numerators and denominators, children could be asked to display the top number in a specific color. The remaining bricks could be different colors or all the same of any color but the one used for the top color.

JDaniel pointed out that to me with he was working on fractions. If was a great time to introduce “big kid” math words.

If you do try any of the above fraction games, please leave me a comment below telling me about it or share a picture of it on my Facebook page.

Laura says

I love the play with colors here. That would work with fractions nicely!

JDaniel4's Mom says

I am so glad you like it.

Amy Louise says

This is a great idea and would get lots of children more tuned in to learning! A few children I have worked with over the years sprung to mind when I saw this – wish I’d known about this idea then! Great!!!

JDaniel4's Mom says

I bet you did a lot of hands on learning with them.

kidseducstion says

Interesting Idea you shared and explained i love the colors my kids loves it

JDaniel4's Mom says

I am glad you like it.

susen @Dabbling Momma says

My son is in 3rd grade and is just now being introduced to fractions. This is a great activity and the Lego’s help make the learning fun! Thanks for sharing at our Share Day!

jess says

I’m a bit confused as to how the Lego fractions work? How do the children show the correct fraction using legos? Can you please explain?

Deirdre says

Kids match the fraction card to the fractions that are on display. You could definitely have kids build the fractions to match the fraction on a card.

Gail says

I love this idea. My son has APD where paper to pencil doesn’t always work. I’m always looking for tactile ways to teach a skill. One thing I am confused about that doesn’t really change how I do it but… You keep referring to the blocks you use for the base set up as 1×8. I see 1×6 blocks. Am I missing something?

Deirdre says

My son does better with hands on learning too. Glad you like this idea!

Robin says

Thank you so much! I havent used or taught fractions in such a long time! By using this idea for my class, being able to review, I have confidence I will pass my Praxis exams in the future! Thank you again

Deirdre says

I am so glad I could help! I hope you ace your Praxis. It is a tough test.

Ruth says

I am not sure how this works. Is the placement of the numerator somehow determined by either the colors chosen or the orientation. I look at the first line of blocks and this looks like 2/5, 1/3, and 1/2

Deirdre says

The numerator is one color of brick and the denominator is another color of brick.

Rachel says

Can’t wait to try this tomorrow!

Thanks for sharing.

Deirdre says

I am so glad that you like this activity!

Kathy says

Thank you for sharing this well thought out and well written “Lego lesson plan”.

Deirdre says

I am thrilled that you like this activity!