Compensation Strategy for Mental Subtraction.
By visually illustrating the mental subtraction strategy of compensation by using moving base ten blocks and a bin my students where able to better understand how answers are adjusted by adding back or subtracting more and therefore compensating for the rounding which made the question easier.
PowerPoint includes 5 examples with base ten blocks and 5 matching slides with matching sums but just the thought process and 2 additional examples without base ten blocks to help learners move from a pictorial representation to an abstract one.
Download includes a double sided worksheet based around the PowerPoint teaching.
Three times table multiplication worksheets.
Differentiated three ways.
Three times table trick worksheets with arrays.
Skip counting by 3s worksheets with hundred square, groups of dice, skip counting practice.
Made for my grade 3 class who are just starting to formally learn their times-tables.
Very visual resource using arrays with dots, hundred charts, step counting and various sum flashcards.
PowerPoint activity/presentation progressing in this slide order:
Counting in steps of two up to 120 from 0.
Count to 24 in steps of 2 with array being built.
100 square count in steps of two with pattern being revealed (2 sec each step).
100 square count in steps of two with pattern being revealed (1 sec each step).
Double the number with numbers in random order (doubling function in-out machine design).
2 times table with sum and array in order.
2 times table with sum and array turnaround in order.
2 times table with sum but no array
2 times table with sum and array out of order.
Answer shown and student to give sum.
Also included are the x0 and x1 timetables. Often overlooked when teaching multiplication, but essential to grasping a true understanding.
First slide is ‘times zero’ times table and shows a fixed golden zero with sum twisting in and out.
Emphasizing the rule that;
“When you multiply a number by zero, the answer is always zero”
Second slide is ‘times one’ times table and shows the multiplicand (the number being multiplied) emerging from itself and sliding over to the product (the answer)
Emphasizing the rule that;
“Any Number Times One is that Number / 1 x anything = itself”
4 times multiplication with double-double strategy. To help learn four times table.
Highly visual, interactive slides with arrays of dots, hundred squares, input-output machine, step counting, and various sum flashcards.
PowerPoint activity/presentation progressing in this slide order:
Counting in steps of four up to 100 from 0.
100 square count in steps of four with pattern being revealed (3 secs each step).
100 square count in steps of four with pattern being revealed (2 sec each step).
100 square count in steps of four with pattern being revealed (1 sec each step).
Double Double Machine (with reinforcemnt of relationship x4)
4 times table in order with array
4 times table in order with no array
4 times table out of order with array
4 times table out of order with array (24 questions)
4 times table - see answer - give sum, out of order, no array, 24 questions
Includes differentiated double-double worksheets
Made for my year 3 class who are just starting to formally learn their times-tables.
Highly visual, interactive slides with arrays of dots, hundred squares, step counting, and various sum flashcards;
PowerPoint activity/presentation progressing in this slide order:
Counting in steps of three up to 102 from 0.
Repeated addition/counting up in 3s to 190 on click
Repeated addition/counting up in 3s to 190 automatic timed steps
100 square count in steps of three with pattern being revealed (2 secs each step).
100 square count in steps of three with pattern being revealed (1 sec each step).
3 times table with array in order
3 times table in order no array
3 times table out of order with array
3 times table out of order no array
3 times table, out of order, no array x24 questions
3 times table - see answer - give sum, out of order with array
3 times table - see answer - give sum, out of order no array
Includes differentiated worksheets.
A PowerPoint which introduces the ‘Doubling-and-Halving Strategy for Multiplication’.
This PowerPoint uses an array to show the multiplication strategy of doubling one factor and halving the other factor to help to work out some multiplication problems. Doubling and halving is therefore related to thinking that ‘restructures’ an array to make it more manageable to multiply (e.g. 3 × 18 = ___ can be rewritten as 6 × 9 = ___).
Very visual resource which helps students see that the total number of circles in an array (the product) stays the same when an array is cut and rearranged.
No text: so recommend that the teacher walks through the first couple of example slides and then students verbally explain the following examples to their peers.
Order of animations:
Tricky array and sum is shown.
Confused smiley bounces in. (explain here that if you don’t know your 15 times table etc. this could be hard)
Scissors appear and cut the array - array restructures into simpler array (double of one factor/half of the other)
New corresponding sum appears - click & answer is shown
Array restructures to first formation and tricky sum is shown again
As the total number of circles has remained the same throughout the sequence the answer should be obvious :-)
I use it alongside other strategies so that it is presented as an option for mental computation involving multiplication.
Position, direction and movement, anti-clockwise, clockwise, fractions of turns
*Review clockwise and anti-clockwise turns by means of animated images of clocks and 11 other fun animated revolving images.
*Learn quarter, two-quarter/half, three-quarters and four-quarters/whole fractions of a circle
*simple following instruction game to review clockwise and anti-clockwise quarter, half, three-quarter and whole turns prior to or after watching a birds-eye animated image of a man standing on a divided circle making animated turns.
*In pairs practice turning a pencil clockwise and anti-clockwise quarter, half, three-quarter and whole turns prior to or after viewing an example.
PowerPoint whole-class teaching resource
Two page worksheet (in word & PDF format) using the same pencil turns image to consolidate learning.
Differentiated worksheets to help with connecting division and multiplication.
Arrays hidden behind a clue - 3 levels LA x2 facts / MA x2,x3,x4 facts / HA x3,x4,x6,x9 facts.
colour match worksheets - fill in each fact. Then use the same colour to show the number facts that belong in the same family. All fact families from x2 to x10.
Inverse multiplication division for fours facts and eights facts.
Division as inverse of double-double (dividing by 4) and halve, halve, halve (dividing by eight).
Also with input-output table worksheet to use with ones blocks for 3’s and 4’s facts.
Plus multiplication - division colour matching for all facts.
Differentiated worksheets (LA/MA/HA)
Pi Day / Math Day lesson activity.
Challenge your students to work out the mystery magic number and/or to use the given magic number to answer the questions
Mystery Magic Number Worksheets
Most of the answers to the questions on the worksheet are correct. However, 4 answers are wrong - colour these incorrect answers/boxes red. Use the 11 correct clues to work out the magic number.
When you think you know the magic number write it in the star.
Finally, using the magic number work out the answers to the 5 questions on the bottom row.
11 differentiated worksheets with answer sheets given.
Use the Given Magic Number to answer the questions worksheets
4 differentiated worksheets - teacher or learner writes a magic number in the star;then answer the 20 questions below using the magic number.
Pi Day Reading Comprehension Worksheet - Learn about the History of Pi Day
Celebrate Pi Day with this Pi Day Reading Comprehension Worksheet. This double-sided worksheet provides comprehensive information about the origins of Pi Day, including the history of Pi Day, what Pi is and how it is calculated, Pi math jokes, Pi Day traditions and customs, and fun facts about Pi.
The worksheet is designed to improve reading comprehension skills and includes two levels of differentiated questions to cater to all learners (higher: 16 questions, lower: 10 questions). Additionally, the worksheet includes a SAT-style multiple-choice question sheet.
Pi Day Reading Comprehension Worksheet is the perfect educational resource to celebrate Pi Day and learn more about the significance of mathematics and science. Deepen your understanding of Pi and have fun while doing it
Grid method multiplication introduction worksheets. Using grid method to multiply a 2 digit number by a 1 digit number.
Differentiated grid method multiplication worksheets.
Please also see https://www.tes.com/teaching-resource/grid-method-arrays-place-value-to-multiply-with-arrays-11579635 which includes these worksheets with a PowerPoint and a few more worksheets.
Doubling and halving using partitioning for 2, 3, & 4 digit numbers.
Doubling and halving frames differentiated worksheets.
Doubling related to multiplying by 2 and halving related to dividing by 2 with matching sum.
Includes blank versions for further differentiation.
Includes x2 times table PowerPoint with numerous animated slide pages, 1 page of which represents x2 as doubling.
Differentiated short division worksheets with answer sheets.
5 days of progression / lessons to help children master short division.
L1 Worksheets - Short Division by 2 no regrouping (2 & 3 digits) - 2 Levels
L2 Worksheets - Short Division by 2 some regrouping (2 & 3 digits)- 3 Levels
L3 Worksheets - Short Division mixed divisors (2 digit), regrouping - 2 Levels
L4 Worksheets - Short Division mixed divisors (2 & 3 digits) regrouping - 3 Levels
L5 Worksheets - Short Division mixed divisors, tricky dividends including 0 (3 digit) - 2 Levels
Worksheets carefully designed to help children layout answers neatly and regroup numbers when needed.
Introductory worksheets for multiplication as arrays (and turnaround facts) and multiplication as groups.
Differentiated to include 2s, 5s, 3s, 4s and other facts.
Two versions of all worksheets - 1 version with differentiation chillies and one without.
41 differentiated column subtraction worksheets for years 2-3
Help students gain subtraction fluency with this comprehensive pack of 41 subtraction worksheets optimized for years 2-3.
Differentiated subtraction problems on grid paper to reinforce place value concepts. The worksheets provide repeated practice with:
2-digit by 2-digit subtraction problems with and without regrouping
3-digit by 3-digit subtraction problems without regrouping
3-digit by 3-digit subtraction problems with regrouping across tens
3-digit by 3-digit subtraction problems with regrouping across hundreds
3-digit by 3-digit subtraction problems with regrouping across tens and hundreds
Mixed 2-digit by 3-digit subtraction problems with and without regrouping
To build problem-solving skills, alternate versions are included where students must set up the subtraction problems themselves on grid paper.
With 41 unique worksheets that progressively increase difficulty, students get the repeated, standards-aligned practice they need to master subtraction concepts and gain fluency. Answer keys included.
Designed for years 2-3, but also useful for basic skills remediation up to year 5. Use these subtraction worksheets for in-class practice or homework to help boost subtraction skills!
Enhance fluency in finding complements to 100 with this comprehensive resource designed for year 3.
It includes 14 worksheets using 100 squares, place value partitioning to find bonds, and number line representations.
Download now to help your learners master complements to 100.
Differentiated Worksheets for Dividing 2-Digit Numbers by 1-Digit Numbers
This set of worksheets provides scaffolded practice for students learning to divide 2-digit numbers by 1-digit numbers without regrouping. The worksheets are organized into 2 lessons/steps:
Step 1 - Divide a 2-digit number by a 1-digit number - no exchange
Step 2 - Divide a 2-digit number by a 1-digit number - flexible partitioning
The worksheets in each step use part-whole models, and are differentiated into 3 levels (with chili peppers):
Completely partitioned
Partially partitioned
Unpartitioned
This differentiation allows students to progress from more structured practice to independent partitioning as their division skills develop.
The 16 worksheets focus on familiar divisors like 2, 3, 4, and 8. These worksheets are ideal for building 2-digit division skills in Year 3. The scaffolding and progression help meet the needs of learners at various levels.
Another great year 3 resource for the next step in division: Divide a 2-digit number by a 1-digit number - with remainders