Lego Math: How Many Legos Does it Weigh?

Lego Math:  How many Legos does it weigh?

Yesterday Gresham and I had so much fun with Legos and math!  We made a balance using a clothes hanger (I saw the idea on Kids Activities Blog), but instead of using plastic cups to weigh items, we used Duplo Legos!  This was a great way to explore standard units of weight, estimating, making a chart, and the concept of equal or not equal.

We decided that in order to standardize our results, we would only use “big” blocks and “little” blocks and not other shapes.

Lego Math:  How many Legos does it weigh?

I tied some yarn to a “gate” looking Duplo piece, and that way we could stick that piece onto the blocks and not have to re-tie the yarn every time.

It was fun to weigh a variety of things – some heavy and some light.  We made a chart, and Gresham wrote down each item and then made a guess as to how many Legos it would weigh.

Lego Math:  How many Legos does it weigh?

The sandal was heavier than Gresham thought it would be.  It was so fun to see his brain at work with throughout this activity.  I would ask him what we needed to do to make the balance equal, and he would say, “I think I need to add two more Legos!”

Math with Legos:  How many Legos does it weigh?

We weighed scissors, a roll of scotch tape, a roll of masking tape, a sandal, and a stuffed animal.  I’m planning to do this again and have Gresham choose different items.  I think that Owen (age 3) would do pretty well with this too, and for him it would be a great way to work on counting.

Here is the chart that Gresham made to record his data:

Math with Legos:  How many Legos does it weigh?

Gresham is doing first grade math.  He turned 6 in October, so he would be in kindergarten if he were in public school.  I’m trying to focus on a lot of hands-on math practice for him this semester.  We’re working on telling time, making graphs, counting coins, skip counting by 2’s, 5’s, and 10’s, and memorizing the addition facts.

For more hands-on math ideas, you might like our even and odd numbers activity and our games for practicing addition facts.


  1. Sue Haddox says

    Wow so simple yet it truly gives the children a concrete visual as they “guesstimate” and then find out the answer. Cant wait to try this in my preschool classroom. Thank you very much for sharing!

  2. says

    I love this idea, it’s simple and uses things that are around the house. I am going to feature it in a free summer day camp curriculum. I will refer people directly to this link to learn how to put it together. Thanks for sharing!

  3. Connie says

    Love this idea. I found it on Pinterest and plan to use it as a fun math station in my first grade class.

  4. says

    Managed Anyone Observed The fact that Samsung Unveils Corby HandsetsSamsung includes intrdouced several latest cellular phones to help it is distinct products Coby, any young adults through European union that they are adedd. The newest versions incllude any Coprby Corby (TXT) and additionally Coprby (PRO), that happens to be available as well as any originaal Corby S3650-Mobile, currently availlable. Typically the Cotrby (TXT) can also be knnown given that the B3210 and contains a good 2. 2-inch LCD, 2MP cameras by using video tutorial guidance, included FM tuner, unpredictable includes, and additionally 40 MB regarding on the machine reminiscence expandable with a microSD greeting card port. The item along BENEFIT GPRS cpa networks Quad-band. Typically the mobile phone handset shall be availabe through European union till the finish regarding Sept. Typically the Crby (PRO) handet possesses a QWERTY kyboard and additionally performs to the 900 2100MHz HSDPA 7. 2Mbps ‘network ‘. Typically the phpone includes 2. 8-inch touchscreen display screen LCD guidance and will be offering a good 3MP cameras. Typically the cameras could also listing a good video tutorial. Otehr capabilities comprise a powerful Radio by using RDS, detachable cover up, Wi-Fi, Bluuetooth, Mirco HARDWARE, 100 MB reminiscence which includes a microSD greeting card port plus more. Typically the mobile phone handset might boat through Nov. Doing this Reasons for Typically the LG KP500 Mobile PhoneMobile phonees happen to be a maximum of solely transmission cool gadgets. Presently, a lot of people plan to be elegant thewse cool gadgets, gammes systems and additionally vendor regarding Word wide web offerings. Decent to view which will thhese little appliances happen to be with success formulate most of these significant featurers. Typically the LG KC910 is normally you good cellular phones which were avaoilable to the mobile phone devices economy. This approach pohne posseses an depiction which will foliage a good deeply imprint from the thoughts regarding clients. If you happen to affectionate abotu any cameras, which may propel a good couplpe regarding snap shots regarding big in that case it LG phne is normally obligatory on your behalf. It gives you 8-megapixel cameras stands out as the imzage answer regarding 3264 by 2448 pixels. Morover, it machine has capabilities enjoy automotive concentration, video tutorial recordinng, and additionally vidoe cameras telephone. Gamerts will truly become happpy utilizing this machine, like the guy has complex efatures fantastic sport. It includes several video game titles that one could execute aytime and additionally any place. About the toher side, it machine also comes in dark coloor, which can be the most accepted color selection all over the world. Just by obtaining it machine suggests that one could post and additionally are given e-maipls by using attachemnts in a very additional rapiid strategy. This approach phoone shall be a good choice for working people which normally require to take a look at most of the mail whle these are not likely before most of the Computer systems. LG KP500 Dessert an alternative design with LG is known as a skilled company. This approach shape Dessert cellphone includes a lot of capabilities which will absolutely get any mpobile owners happen to be dependnet fitted. This approach wonderful machine also comes in a number of different shades, enjoy dark, Vandyke grey, anodized silcver and additionally golden classy. Purchase it cellphone through such different shades. There are a number individuals who desire to invest in cellular phones in agreement with thheir favoruite different shades and additionally horoscope. This approach communicationms machine possesses a cameras 3. 2 huge pixels whicch any snapshot reslution regarding 2048 by 1536 pxels. This approach cameras normally takes premium imaegs, professionals who log in get tese snap shots on-line, preserve on your pc or even remove them regarding prrint and additionally, as a consequence, available individuals. Inside standby style, it is solar battery is normally 350 a long time and additionally have a discussion it machine.

  5. says

    Hmm it looks like your website ate my first comment (it was extremely long) so I
    guess I’ll just sum it up what I wrote and say, I’m thoroughly
    enjoying your blog. I too am an aspiring blog writer but
    I’m still new to the whole thing. Do you have any suggestions for newbie blog writers?

    I’d definitely appreciate it.

  6. says

    It’s perfect time to make some plans for the long run and it is time to be happy.
    I’ve read this post and if I could I desire to recommend you few interesting things
    or suggestions. Perhaps you could write subsequent articles relating to this article.

    I wish to read more things about it!


Leave a Reply

Your email address will not be published. Required fields are marked *