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 4 taught?

This standard is part of the Grade 4 curriculum in Alabama Mathematics Standards.

Grade 4 Math Standards | Alabama | Alabama Mathematics Standards

Grade 4

Multi-digit multiplication and division, fraction equivalence, and fraction and decimal comparison deepen number work. Lines, angles, and circles are classified and measured; area, perimeter, and angle measurement connect geometry to arithmetic. Data interpretation with line plots and multi-step measurement problems tie the strands together.

4.1Interpret and write equations for multiplicative comparisons.4.10Use place value strategies to fluently add and subtract multi-digit whole numbers and connect strategies to the standard algorithm.4.11Find the product of two factors (up to four digits by a one-digit number and two two-digit numbers), using strategies based on place value and the properties of operations.4.12Use strategies based on place value, properties of operations, and/or the relationship between multiplication and division to find whole-number quotients and remainders with one-digit divisors and up to four-digit dividends.4.13Using area and length fraction models, explain why one fraction is equivalent to another, taking into account that the number and size of the parts differ even though the two fractions themselves are the same size.4.14Compare two fractions with different numerators and different denominators using concrete models, benchmarks (0, ½, 1), common denominators, and/or common numerators, recording the comparisons with symbols >, =, or <, and justifying the conclusions.4.15Model and justify decompositions of fractions and explain addition and subtraction of fractions as joining or separating parts referring to the same whole.4.16Apply and extend previous understandings of multiplication to multiply a whole number times a fraction.4.17Express, model, and explain the equivalence between fractions with denominators of 10 and 100.4.18Use models and decimal notation to represent fractions with denominators of 10 and 100.4.19Use visual models and reasoning to compare two decimals to hundredths (referring to the same whole), recording comparisons using symbols >, =, or <, and justifying the conclusions.4.2Solve word problems involving multiplicative comparison using drawings and write equations to represent the problem, using a symbol for the unknown number.4.20Interpret data in graphs (picture, bar, and line plots) to solve problems using numbers and operations.4.21Select and use an appropriate unit of measurement for a given attribute (length, mass, liquid volume, time) within one system of units: metric - km, m, cm; kg, g, l, ml; customary - lb, oz; time - hr, min, sec.4.22Use the four operations to solve measurement word problems with distance, intervals of time, liquid volume, mass of objects, and money.4.23Apply area and perimeter formulas for rectangles in real-world and mathematical situations.4.24Identify an angle as a geometric shape formed wherever two rays share a common endpoint.4.25Use a protractor to measure angles in whole-number degrees and sketch angles of specified measure.4.26Decompose an angle into non-overlapping parts to demonstrate that the angle measure of the whole is the sum of the angle measures of the parts.4.27Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines, and identify these in two-dimensional figures.4.28Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.4.29Define a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts.4.3Determine and justify solutions for multi-step word problems, including problems where remainders must be interpreted.4.4For whole numbers in the range 1 to 100, find all factor pairs, identifying a number as a multiple of each of its factors.4.5Generate and analyze a number or shape pattern that follows a given rule.4.6Using models and quantitative reasoning, explain that in a multi-digit whole number, a digit in any place represents ten times what it represents in the place to its right.4.7Read and write multi-digit whole numbers using standard form, word form, and expanded form.4.8Use place value understanding to compare two multi-digit numbers using >, =, and < symbols.4.9Round multi-digit whole numbers to any place using place value understanding.

Example Problems

Sheniqua is playing several rounds of a card game.
Answer the question about a situation that can be represented with the expression

30 + (-70)

.

Did Sheniqua earn or lose 70 points in one of the card game rounds?

Multiply:

83 \times 4 = ?

Find the quotient with remainder:

94 \div 3 =

Add:

\frac{4}{9} + \frac{3}{7}

Solve the equation:

\frac{7}{9} = \frac{2}{9} + x

1-on-1 AI tutoring aligned to 4. 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 →

4: Grade 4

Grade 4