Is Goblins free for teachers?

Yes. Goblins offers a generous free tier that includes 1 live feedback assignment per week, insights on student mastery and replays, and the ability to upload your own content. The Max plan adds unlimited assignments, superadaptive mode, grade exports, standards growth reports, and SSO/LMS integration, with per-student pricing for schools and districts.

How does Goblins work?

Three simple steps: (1) Share an assignment from thousands of standards-aligned topics using a share code. (2) Students speak and draw their thinking naturally, and Goblins responds with Socratic questioning that sounds just like their teacher. (3) Teachers get real-time formative insights showing what students struggle with and suggestions to inform instruction.

Does Goblins prevent cheating?

Yes. Goblins uses a purpose-trained AI model that evaluates cheating signals in real time. It can detect when students are copying answers, using external tools inappropriately, or not genuinely working through problems. Copy-pasting answers is also blocked.

Can I use my own voice with Goblins?

Yes. Teachers can record their voice and take a selfie to create a custom 3D avatar in about 30 seconds. Students then hear help in their own teacher's voice and see a familiar face, making the experience more personal and effective.

What math levels does Goblins cover?

Goblins covers math from Grade 5 through AP Calculus, including thousands of standards-aligned topics. Teachers can also upload their own content for custom assignments at any level.

Is Goblins FERPA compliant?

Yes. Goblins is FERPA and state compliant. Student data privacy and security are a top priority.

Does Goblins support English Language Learners?

Yes. Goblins supports 30+ languages so teachers don't have to translate every worksheet. It is especially helpful for ELL students who need accessible math instruction in their native language.

FAC.F.18

Given two points, a graph, a table of values, a mapping, or a real-world context determine the linear function that models this information. Fluently convert between the point-slope, slope-intercept, and standard form of a line.

Example Problems

What is

y - 4 = 5(x - 1)

written in standard form?

What is

y = \frac{4}{7}x - 6

written in standard form?

What is

y = \\frac{5}{3}x - 4

written in standard form?

Khan Academy Resources

Standard form review Forms of linear equations review Writing slope-intercept equations Intro to slope-intercept form Slope review Slope-intercept form review Age word problems Convert linear equations to standard form Point-slope form Slope-intercept intro Writing linear equations word problems Graph from linear standard form Slope-intercept from two points Systems of equations word problems Slope from graph Linear models word problems Modeling with multiple variables Graphing linear relationships word problems Slope-intercept equation from graph Linear equations in any form Graph labels and scales Modeling with sinusoidal functions: phase shift Construct exponential models Modeling with sinusoidal functions Systems of equations with elimination: x-4y=-18 & -x+3y=11 Systems of equations with elimination: King's cupcakes Systems of equations with elimination: potato chips Age word problem: Ben & William Age word problem: Arman & Diya Age word problem: Imran Slope-intercept equation from graph Slope-intercept form problems Worked example: slope from graph Writing linear equations in all forms Systems of equations with elimination: TV & DVD Rational equations word problem: combined rates (example 2)Rational equations word problem: eliminating solutions Slope of a horizontal line Slope-intercept equation from slope & point Slope-intercept equation from two points Systems of equations with substitution: coins Rational equations word problem: combined rates Constructing exponential models: percent change Trig word problem: modeling annual temperature Intro to linear equation standard form Trig word problem: length of day (phase shift)Modeling with multiple variables: Roller coaster Constructing exponential models: half life Linear functions word problem: iceberg Linear functions word problem: paint Modeling with multiple variables: Pancakes Linear functions word problem: pool Systems of equations with elimination: coffee and croissants Positive & negative slope Constructing linear equations from context Two-variable linear equations intro System of equations word problem: infinite solutions Intro to slope-intercept form Systems of equations with elimination: apples and oranges System of equations word problem: no solution Slope and y-intercept from equation Clarifying standard form rules System of equations word problem: walk & ride Constructing exponential models Trig word problem: modeling daily temperature Modeling with basic exponential functions word problem Linear functions word problem: fuel Converting from slope-intercept to standard form Intro to slope

1-on-1 AI tutoring aligned to FAC.F.18. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

Free for teachers, forever →