*NEW! PV 40, 41 AS 42 43 (OLD PV17 AS21) 4-DIGIT PV AS 2-3 DIGIT
PLACE VALUE 40 Place Value beyond 1000 (old PV 17 PA 16)
PLACE VALUE 41 Count, order numbers beyond 1000 (old PV 17 PA 16)
ADDITION & SUBTRACTION 42 Add and subtract 2- and 3-digit numbers (old AS 21)
ADDITION & SUBTRACTION, ALGEBRAIC THINKING 43 Unknown values in addition & subtraction (old AS 22 PA 20)
NB: ALL RESOURCES ARE ALSO ON OUR NEW SITE AND ARE MUCH MORE EASILY ACCESSED! TRY NOW!
The ELEMENTS in this group are intrinsically related because Place Value concepts have an empirical and logical basis to Addition & Subtraction concepts. In other words, when we add and subtract without counting by ones, we are using our understanding of Place Value concepts.
Once a student has demonstrated and explained their understanding of adding and subtracting 2-digit numbers using compensation, the focus is adding and subtracting numbers beyond 1000 flexibly. Algorithms negate this focus.
- COMPLETE TEACHING RESOURCES
- PV 40 PLACE VALUE BEYOND 1000
- PV 41 COUNT BY PVs BEYOND 1000
- AS42 ADD SUBTRACT FLEXIBLY
- AS43 UNKNOWN ADDITION & SUBTRACTION
- PV40 TEACHING POWERPOINT
- PV41 TEACHING POWERPOINT
- AS42 TEACHING POWERPOINT
- AS43 TEACHING POWERPOINT
- PV40 PROBLEM SOLVING
- PV41 PROBLEM SOLVING
- AS42 PROBLEM SOLVING
- AS43 PROBLEM SOLVING
- VIDEO: PV40 a PLACE VALUE OF 1000
- VIDEO: PV40 b PLACE VALUE BEYOND 1000
- VIDEO: PV40 c READ NUMBERS BEYOND 1000
- VIDEO: PV41 i ORDER BEYOND 1000
- VIDEO: PV41 ii a COUNT FORWARD 100s BEYOND 1000
- VIDEO: PV41 ii b COUNT BACKWARD 100s BEYOND 1000
- VIDEO: PV41 ii a COUNT FORWARD 1000s BEYOND 1000
- VIDEO: PV41 iii b COUNT BACKWARD 100s BEYOND 1000
- VIDEO: AS42 i ADD 2-DIGIT USING PLACE VALUE
- VIDEO: AS42 i SUBTRACT 2-DIGIT USING PLACE VALUE
- VIDEO: AS42 ii ADD 2-DIGIT FLEXIBLY
- VIDEO: AS42 ii SUBTRACT 2-DIGIT FLEXIBLY
- VIDEO: AS42 iii ADD 3-DIGIT FLEXIBLY
- VIDEO: AS42 iii SUBTRACT 3-DIGIT FLEXIBLY
- VIDEO: AS43 i EQUIVALENT ADDITION
- VIDEO: AS43 i EQUIVALENT SUBTRACTION
- VIDEO: AS43 ii a EQUALS SIGN
- VIDEO: 43AS ii b UNKNOWN ADDITION - BARS
- VIDEO: 43AS ii b UNKNOWN SUBTRACTION - BARS
- VIDEO: 43AS ii c UNKNOWN ADDITION
- VIDEO: 43AS ii c UNKNOWN SUBTRACTION