Negative Numbers PowerPoints

Students meet negative numbers as positions to the left of zero on a horizontal number line, then on a vertical thermometer to anchor the idea in something physical. Slides walk through reading temperatures below zero, ordering integers from smallest to largest, and comparing values using the less-than and greater-than symbols. Visual prompts pair each abstract integer with a concrete context — a freezer reading, a basement floor number, an account balance — so the concept lands before the rules arrive. These foundations connect to companion lesson plans on place value and integers, and follow-up worksheets let students practise reading and ordering negatives at their own pace.

Once students can read and order integers, the slides move into the four operations one at a time. Addition and subtraction are taught first using directed jumps on the number line, then the "two signs side by side" pattern (e.g. 5 − (−3) = 5 + 3) is introduced with worked examples. Multiplication and division build on the same logic, with sign-rule grids that you can leave on screen as a reference during practice. Where a class needs more reps, the linked assessments generate fresh practice questions on demand, and the PowerPoint library has complementary decks on the order of operations and algebraic expressions involving negatives.

The final section of every deck applies negative numbers to the contexts students see outside the classroom: temperature changes between cities, elevation above and below sea level, bank balances after a debit, and golf scores under par. Each context comes with a model answer slide and a set of student questions you can use for guided practice, independent work or an exit ticket. These applied tasks dovetail with related worksheets on integer word problems and with the broader sequencing in our lesson plans, so the slides slot cleanly into a unit rather than sitting on their own.