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.

What grade level is N-VM taught?

This standard is part of the N-VM curriculum in New Jersey Student Learning Standards - Mathematics.

N-VM: Vector and Matrix Quantities

Vector and Matrix Quantities

Print

Vector and Matrix Quantities introduces the two main objects of linear algebra. Three clusters address representing vectors and applying them to velocity and force problems, performing vector addition and scalar multiplication, and carrying out matrix operations including multiplication and understanding matrices as linear transformations of the plane.

N-VM.ARepresent and model with vector quantities.N-VM.BPerform operations on vectors.N-VM.CPerform operations on matrices and use matrices in applications.

Example Problems

A curve is defined by the parametric equations

x = t^3

and

y = t^2

.
What is

\frac{d^2y}{dx^2}

in terms of t?

The component form of vector

\vec{v}

is

\vec{v} = (2, 0)

.
Find

5\vec{v}

.

The component form of vector

\vec{v}

is

\vec{v} = (4, -6)

.
Find

0\vec{v}

.

Vector

\vec{AB}

has a terminal point

(-5, -5)

, an x component of 3, and a y component of 3.

Find the coordinates of the initial point, A.

The component form of vector

\vec{v}

is

\vec{v} = (-7, -3)

.
Find

4\vec{v}

.

1-on-1 AI tutoring aligned to N-VM. Instant help for students, real-time insights for teachers.

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