Learning Resources Metric Weight Set, Set of 58 Weights, 1g, 5g, 10g, 20g, 100g, 500g, 1000g

Nice for classroom.

It's a nice learning product, but I wish the case had arrived intact as a place to store them. The warehouse person must have thrown it into the box with our other educational purchases and shattered the case it was in. Since that's not the fault of the manufacturer etc. I won't mark them down for it. offers great visuals for kids! will get a lot of use out of these.

They were great for my third grade class to tell the difference between a gram and kilogram. CCSS has us teaching metric mass and these were a necessity. There are more weights than I needed, but the kids loved playing/learning with them

There is a 1g tolerance as you go from the metal weights to the plastic weights, so if you're using this to teach about balances, you will need to explain the difference. Likely, the plastic coating on the metal weights was not accounted for. Still, it sits in our dining room, and the kids (5 and 8) are having a blast weighing everything, comparing weights, and understanding the fundamentals of algebra. (To do that, get a true 2-sided balance, and talk about taking 3 grams from both sides will leave the sides still in balance -- then write it down as an equation, and taking away 3 from both sides. Talk about difference vs absolute measurements, etc...) This is a math toy rather than just a science toy in our home.

Works great in a third grade classroom. Students can use easily, and it's very helpful for giving them a good idea of how much a gram versus a kilogram weighs.

This is a great math resource for my students.

Bought these to use with balance scale for students who struggle with algebra. They work well for that.

I needed something to help third graders “feel” various weights. These were prefect!

nice weights but the container is made of weak plastic that's already showing signs of bending and warping upon delivery.,the lid has flaps to hold it in place but do not stay in place so the lid is not locked down, hinges on the flaps already show wear and will break in no time. pls updated the container and lid design for durability. the weights do stack on top of one another but they do not click together to stay in place

Product arrived OK and nothing missing. The box and weights seem a bit battered and used, but think it is advertised as new.

Son geniales para utilizar con las balanzas analógicas. La incertidumbre en cada una de las piezas es mínimo. Excelente para utilizar en el laboratorio