Twenty Frame – Sand

Twenty Frame – Sand

These Sand Twenty Frame Mats are great for learning counting with one-to-one correspondence, understanding teen numbers, composition of numbers, number sense, addition and subtraction with concrete materials, practising the “bridging to 10” strategy, number sequencing and more!

Features:

* 2 mats, one with numbers, one without.

* Sand design.

Uses:

* Counting: children practise counting loose parts/objects by placing one in each box as they count to twenty. You might choose to use the mat with the numbers printed on it to help children learn the visual representation of the numbers as they count.

* Understanding the correspondence between the number spoken and the amount it represents: an option for this is to use the mat with the numbers printed on it and have the children put small objects (such as beads or small pebbles) into each box to show that amount ie. one bead in the “1” box, 2 beads in the “2” box, 3 beads in the “3” box etc up to twenty. (Note: WunderSparks activity ideas are designed for children over the age of 3, who are no longer putting small objects in mouths.)

* Understanding teen numbers as a group of 10 plus extras: placing objects in the twenty frames to make teen numbers is a great way to help children understand the concept of teen numbers being a ten plus more eg. That 16 is a set of 10 and 6 more, 14 is a ten and 4 more etc.

* Number sequencing: You may like to use the frame as a guide for children as they learn to sequence numbers. WunderSparks number cards work really well for this. You can print the number cards to 20 and the children practise placing the cards in the frame in the correct sequence.

* Writing numbers: The twenty frame can also be used for practising writing numbers. They can write the numbers to 20 in the frame. Laminating the paper or placing it in a dry erase pouch will allow you to use the frame over and over with dry erase markers. Using the mat with the numbers on it will give them a guide when they are beginning and then you can use the empty mat to see if they can remember how to write the numbers without the prompt.

* Composition of numbers: choose a focus number and have the children put that number of objects into the frame. Provide more than one type of loose parts/counters and ask the children to make the focus number using 2 types of loose parts/counters (eg. dinosaurs and rocks). Note that the number (say it’s 17) can be made with 10 dinosaurs and 7 rocks. Ask the children to make 17 a different way, they might make 12 and 5, 1 and 16 etc.

* Combinations to 20: pick a focus number within 20 (using WunderSparks number cards face down can be a fun way to select a number). Make the number by placing that many objects within the frame. Ask students how many more is needed to get to 20. Twenty frames give a really good visual representation of this and help children to understand the concept. Children might then make a list of the different number combinations they can discover that make 20 (eg. 10 and 10, 13 and 7, 18 and 2) and note how they relate to the combinations to 10. Transferring this knowledge of combinations to 10 into other sets of ten forms a basis for working with larger numbers mentally.

* Addition and subtraction: Twenty Frames are a fantastic visual tool for addition and subtraction with concrete materials (objects). It helps children visually see and track what is happening when you add and subtract.

* Addition or subtraction with cards: Print a set of WunderSparks addition or subtraction cards and place them in a pile or face down on a surface. Children flip a card, read the addition or subtraction equation and use the frame and concrete materials to solve it. The cards mean teachers or parents are not having to keep coming up with equations, they are there ready for the children to use independently.

* The “Bridging to 10” strategy: This strategy involves children using their knowledge of addition to 10 to help them work out sums that total more than 10. Using the example of 9+7, children look at the first number (9) and work out how many is needed to get to 10. As 1 more is needed, they then take that 1 from the second number, leaving them with the easier sum 10+6. As tens are an easier base to work with, the bridging to 10 strategy is widely used in mental math equations as children get older and equations get more complex. Twenty Frames provide a great visual tool to help develop an understanding of this strategy.

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