Curated OER
One More or One Less?
Hook new mathematicians with a candy-themed approach to addition and subtraction. They examine 10 numbers (not exceeding 19) printed on candy wrappers. For each, learners calculate and record numbers with values one more and one...
Curated OER
1 Less or 1 More
Complete these images with values one less and one more; young mathematicians fill in bunches of flowers, starting at a middle number and working their way to the right by addition and to the left by subtraction. For each flower they...
Curated OER
One More/One Less Scoop
It's so simple: scoop a spoonful of counters, count them, and then make a set that is one more than that number. Next, make a set that is one less. The tangible nature of this basic addition and subtraction activity will keep learners...
Curated OER
Count Forward from a Given Number
Using images of ice cream cones and carrots, this counting exercise has learners find sets of images with one more than the given set. For the first question, they count a set of six cones, then examine four other sets to indicate the...
Curated OER
Ten More and Ten Less
Get learners to analyze two-digit numbers based on place value, and use manipulatives to add and subtract both 1 and 10. A place value chart is available, and you can project it during guided practice. Through visualizing...
Curated OER
One More, One Less - A Practice
Learners practice adding one more item and taking away one more item to figure for one more, and one less of a number. In this one more and one less lesson plan, students use manipulatives.
Illustrative Mathematics
Illustrative Mathematics: "One More" Concentration
This game is a version of the traditional memory or concentration game. Students will practice counting forward or backward depending on their skill level. Directions and materials needed are fully explained in the lesson.
NumberNut
Number Nut: Numbers and Counting: Counting From One to One Thousand
A game where the player must first click on the number that is one less than a number between one and one thousand, then on the number that is one more.
NumberNut
Number Nut: Numbers and Counting: Counting From One to Ten Activity
A game where the player must first click on the picture showing one less dot than the given number, then on the picture with one more.