Online Geometry Help | Part of K-12 Math Curriculum

Most Students Hit a Wall in Geometry. Here's Why.

Most subjects in math ask students to follow a process. Geometry asks them to think spatially, reason logically and work with abstract shapes and relationships in a way that feels completely different from anything they have done before.

For some students, that shift clicks immediately. For many others, it does not. Proofs feel arbitrary. Theorems blur together. The connection between what they are drawing and what they are calculating is not obvious.

That is not a problem with the student. It is usually a problem with how the content was introduced, or with a gap in something earlier, like angles or triangles, that nobody went back to fill.

The Math Doctor assessment identifies exactly where your child's geometry understanding breaks down and builds a weekly plan around fixing it.

Geometry Is Part of Our Full K-12 Math Curriculum

Geometry is covered within our full K-12 math curriculum, alongside algebra, pre-calculus and all the other subjects your child moves through in school.

When your child joins, they complete the Math Doctor assessment. That maps where their math knowledge is solid and where it is not. If geometry is the area that needs the most work, the weekly plan focuses there. As those gaps close, the plan moves forward.

Because geometry draws heavily on algebra skills from previous years, the Math Doctor assessment often catches connected gaps at the same time. Weak coordinate geometry, for example, frequently traces back to an incomplete understanding of linear equations. The plan addresses both.

What We Cover in Geometry

Our geometry curriculum is fully aligned to Common Core Standards and covers everything from foundational angle work through to circle geometry, trigonometry and coordinate geometry.

Angles and Polygons

The building blocks that everything else in geometry rests on.

Basic angle theorems
Triangle theorems and the angle sum of any polygon
Properties of quadrilaterals
Parallel line theorems
Tests for congruency
Applications of congruency
Constructions in geometry

Similarity, Right Triangles and Trigonometry

Where geometry and algebra start to overlap, and where many students feel the subject become more demanding.

Similar triangles and problems using similar triangles
The Pythagorean theorem
Special triangles and exact values
Naming the sides of a right triangle
The sine, cosine and tangent ratios
Finding unknown sides and angles
Degrees, minutes and seconds
Trigonometry problems
Angles of elevation and depression

Coordinate Geometry

The connection between geometric shapes and the coordinate plane.

Parallel and perpendicular lines
Coordinates of a point
Circles and other curves
The midpoint formula
Distance between two points
Determining whether a point lies on a line

Geometric Measurement

Area, surface area, volume and scale.

Area of rectangles, triangles and composite figures
Summary of common area formulas
Surface area of solids and composite figures
Area and perimeter of a circle
Volume of prisms and cylinders
Nets and patterns to build shapes
Scale drawings

Circle Geometry

One of the more challenging chapters of a high school geometry course.

Parts of a circle
Angle in a semicircle
Angles at the center of the circle
Angles in the same segment
Cyclic quadrilaterals
Tangent to a circle
Chord properties
Arc length and sector area in degrees and radians

Probability

The data and probability content that forms part of a full geometry course.

Set theory
Venn diagrams
Probability basics
Range of probabilities
Replacement and non-replacement problems
The addition and multiplication rules
Permutations and combinations

How Our Tutoring Works

Step 1: Math Doctor Assessment

Every student starts here. The Math Doctor diagnostic assessment identifies exactly which math concepts your child understands and where the gaps are, including in geometry. This is what makes the personalized plan possible.

Step 2: A Weekly Lesson Plan Built Around Your Child

Every Monday, your child's personalized learning plan is updated with new lessons targeting the areas that need support, including geometry. The lessons are delivered through Math Wiz, our online learning platform, so your child can keep building their skills with the right support each week.

Step 3: Learning at Their Own Pace

Your child's personalized lesson plan is delivered weekly and can be completed at home on a tablet or computer. Every question has a step-by-step solution built in. If a proof is not making sense, they can go through the worked solution as many times as they need to. The plan tracks their progress and adjusts week by week.

Step 4: Tutor Support When They Get Stuck

If your child needs extra support with geometry or another area of math, our online tutors are there to explain concepts further and answer questions, so your child can continue with confidence.

Why Geometry Matters for What Comes Next

Geometry is not just a course to get through. The spatial reasoning, logical thinking and proof-writing skills it develops carry through to Pre-Calculus, Trigonometry and beyond. Students who come out of geometry with a solid understanding of triangles, circles and coordinate geometry find Pre-Calculus noticeably more manageable.

The trigonometry covered in geometry is also the foundation for more advanced trig work in Algebra 2 and Pre-Calculus. A student who understood sine and cosine ratios properly in geometry will not be starting from scratch when they appear again later.

Geometry skills also show up in standardized assessments. The SAT and ACT include geometry and spatial reasoning questions, and state assessments like STAAR test geometric concepts from middle school onwards. We build the underlying skills, and those skills are what the tests draw on.

Pricing

Math tutoring starts from $24 per week, covering the full K-12 curriculum, the Math Doctor assessment, a personalized weekly lesson plan, access to the tutor helpline and weekly progress reports. New students get their first two weeks free.

$24 / week

Full K-12 math curriculum (geometry included)
Math Doctor diagnostic
Personalized weekly lesson plan
Tutor helpline up to 10 hrs/week
Weekly progress reports

Start Your 2 Weeks Free

Frequently Asked Questions

What geometry topics does the curriculum cover?

Our geometry curriculum covers angles and polygons, triangle and circle theorems, similarity and congruency, right triangle trigonometry, coordinate geometry, geometric measurement including area, surface area and volume, and probability. It covers both the middle school geometry content in Grades 6 to 8 and the full high school geometry course, all aligned to Common Core Standards.

My child is really struggling with geometry proofs. Can the curriculum help?

Yes. Geometry proofs ask students to explain why something is true using rules, facts, and logical steps. They can be challenging because students need to understand the geometry concept and know how to organize their reasoning clearly. APLUS America helps by working through congruency, similarity, and geometric reasoning step by step, with worked solutions for every question. If your child needs someone to walk them through a concept, our online tutors are available to explain it further and answer questions.

My child found algebra difficult. Will they manage geometry?

It depends on where the difficulty was. Some students who find algebra hard actually do better in geometry because it is more visual and spatial. Others find the coordinate geometry sections harder because they connect directly to algebra. The Math Doctor assessment identifies which scenario applies so the plan is built accordingly.

Does geometry help with standardized tests?

We are a curriculum service, not a test prep service. Geometry concepts including triangles, circles, area and coordinate geometry come up regularly in the SAT, ACT and state assessments like STAAR. A student who has genuinely worked through the geometry curriculum will be drawing on those skills when they sit any of those assessments.

What comes before and after geometry in the curriculum?

At school, geometry typically follows Algebra 1. After geometry, students usually move into Algebra 2, then Pre-Calculus and Trigonometry, with AP Calculus available for students who are ready for more advanced math. Your child's personalized plan moves with them as they progress, so they can build the right skills at a pace that works best for them.

Does the geometry curriculum work for students with ADHD or learning differences?

Yes. Our geometry support can work well for students with ADHD or learning differences. We begin by assessing your child to understand where their learning currently is, then create a personalized learning plan based on their needs and progress so far. Each topic is designed to feel manageable, with lessons your child can work through at their own pace. Our lessons are interactive and engaging, using visuals, diagrams, worked examples, and audio support to help students understand patterns, shapes, and geometric ideas more clearly. If your child needs extra help, tutor support is available to help them.

Online Geometry Help: Shapes, Proofs, Trigonometry and Beyond