The Number Wheels - 21 to 30 were designed to support students in Year 1.
They are an entension of the following resources covering numbers 1-10 and 11-20.
http://www.teachthis.com.au/products/view-resource/link/Number-Wheels-1-10/id/2774/
http://www.teachthis.com.au/products/view-resource/link/Number-Wheels-11-to-20/id/3474/
Use mathematical modelling to solve practical problems involving additive situations, including simple money transactions; represent the situations with diagrams, physical and virtual materials, and use calculation strategies to solve the problem
Partition and combine collections up to 10 using part-part-whole relationships and subitising to recognise and name the parts
Use mathematical modelling to solve practical problems involving equal sharing and grouping; represent the situations with diagrams, physical and virtual materials, and use calculation strategies to solve the problem
Recognise, represent and order numbers to at least 120 using physical and virtual materials, numerals, number lines and charts
Partition one- and two-digit numbers in different ways using physical and virtual materials, including partitioning two-digit numbers into tens and ones
Quantify sets of objects, to at least 120, by partitioning collections into equal groups using number knowledge and skip counting
Connect number names, numerals and quantities, including zero, initially up to 10 and then beyond
Recognise, model, read, write and order numbers to at least 100. Locate these numbers on a number line
Count collections to 100 by partitioning numbers using place value
Uses a range of strategies and informal recording methods for addition and subtraction involving one- and two-digit numbers
Describes mathematical situations using everyday language, actions, materials and informal recordings
Uses objects, actions, technology and/or trial and error to explore mathematical problems
Uses concrete materials and/or pictorial representations to support conclusions
Counts to 30, and orders, reads and represents numbers in the range 0 to 20
Represents and models halves, quarters and eighths
Uses a range of mental strategies and concrete materials for multiplication and division
Describes mathematical situations and methods using everyday and some mathematical language, actions, materials, diagrams and symbols
Uses objects, diagrams and technology to explore mathematical problems
Supports conclusions by explaining or demonstrating how answers were obtained
Applies place value, informally, to count, order, read and represent two- and three-digit numbers
Represents the relations between the parts that form the whole, with numbers up to 10
Reasons about representations of whole numbers to 1000, partitioning numbers to use and record quantity values
Applies an understanding of place value and the role of zero to read, write and order two- and three-digit numbers
Uses the structure of equal groups to solve multiplication problems, and shares or groups to solve division problems
Uses number bonds and the relationship between addition and subtraction to solve problems involving partitioning
Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts
Recognise the importance of repetition of a process in solving problems
Recognise, describe and order Australian coins according to their value
Represent practical situations that model sharing
Recognise, model, read, write and order numbers to at least 100. Locate these numbers on a number line
Recognise and describe one-half as one of two equal parts of a whole
Connect number names, numerals and quantities, including zero, initially up to 10 and then beyond
Count collections to 100 by partitioning numbers using place value
Develop confidence with number sequences to and from 100 by ones from any starting point. Skip count by twos, fives and tens starting from zero