Having taught a test prep course in Hanoi and tutored math across multiple grade levels, Erika knows that the leap from arithmetic to working with variables and expressions is where most students either gain momentum or start losing confidence. Her public policy graduate work required constant data ...

On the pre-med track at the University of Chicago with a 36 ACT, Rhea built her own math fluency from the ground up — and she remembers exactly where the leap from arithmetic to thinking with variables and expressions first felt shaky. She zeroes in on fraction operations and signed number rules as ...

Having taught a discrete mathematics class as a TA and run an SAT prep program in high school, Samuel has spent real time figuring out how to make the jump from arithmetic to algebraic thinking feel natural — which is the core challenge of pre-algebra. His applied math studies at Caltech mean concep...

Medical school runs on the kind of proportional reasoning and equation setup that students first encounter in pre-algebra — and Annie, now a second-year MD student with a physiology background from UCLA, uses those connections daily when calculating dosages, dilutions, and concentrations. She scored...

Before medical school, Samantha earned perfect scores on both the SAT and ACT — but what makes her effective in pre-algebra is her Duke training in global health, where she constantly translated messy real-world data into clean mathematical relationships using exactly the ratio, proportion, and vari...

Sami's Duke degrees in Economics and Computer Science both required translating real-world problems into mathematical language — a process that starts with the exact skills pre-algebra covers, like writing expressions, working with variables, and solving basic equations. His 35 ACT confirms that fou...

Pinelopi scored a 1530 on the SAT, which means the integer operations, fraction fluency, and expression-building that define pre-algebra are deeply automatic for her — and she can zero in on exactly where a student's arithmetic starts breaking down as variables enter the picture. Her psychology degr...

Between coding bioinformatics pipelines and analyzing stem cell data at Stanford, Matthew spent years turning raw numbers into meaningful patterns — a process that starts with the exact skills pre-algebra covers: integer operations, ratios, and translating real situations into expressions. He takes ...

Spending a full year embedded in a middle school classroom, Sharon watched students struggle with the exact pre-algebra concepts that trip most kids up — integer operations, order of operations, and translating word problems into expressions. She developed targeted strategies for each of these stick...

Getting the fundamentals right in pre-algebra — integer operations, order of operations, basic properties of fractions and ratios — determines how smoothly everything from algebra through calculus will go. Charles approaches these building blocks with the precision of an engineering student who know...