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.

6.A.1.3

Use and evaluate variables in expressions, equations, and inequalities that arise from various contexts, including determining when or if, for a given value of the variable, an equation or inequality involving a variable is true or false.

Example Problems

Evaluate:

9 - x

when

x = 8

Write an expression for:

5(x + y + z)

Evaluate:

8 + 3x

when

x = 2

Khan Academy Resources

Writing basic expressions with variables Evaluating expressions with variables word problems Evaluating expressions with two variables Writing basic expressions word problems Evaluating expressions with multiple variables Evaluating expressions with one variable Analyze relationships between variables Relationships between quantities in equations Evaluating expressions with variables word problems Tables from equations with 2 variables Writing basic expressions word problems Inequalities word problems Testing solutions to inequalities (basic)Independent versus dependent variables Why aren't we using the multiplication sign?Evaluating an expression with one variable Evaluating expressions with variables: temperature Variables, expressions, & equations Dependent & independent variables: graphing Writing basic expressions word problems Inequalities word problems Plotting inequalities Evaluating exponent expressions with variables Evaluating expressions like 5x² & ⅓(6)ˣ Evaluating expressions with two variables: fractions & decimals Testing solutions to inequalities Writing equations for relationships between quantities Evaluating expressions with two variables Numerical inequality word problems

1-on-1 AI tutoring aligned to 6.A.1.3. 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 →