The Imagine Sonday System is a collection of products that offers structured, systematic, multisensory reading instruction. Some products offer on-grade-level instruction and some were designed specifically for intervention.
Some of the products are available in print and digital formats, some are only digital, and others are only print. However, even the print-only offerings contain digital resources to supplement the printed material.
Use the following table to learn more:
| Product | Description | Implementation model | Print-only version available? | Fully digital version available? |
|---|---|---|---|---|
| Lets Play Learn (LPL) | Pre-reading instruction focused on reading readiness. LPL is based on Orton-Gillingham principles and can be used for Tiers 1, 2, and 3 as well as direct instruction for all students. The curriculum also covers shapes, colors, and numbers. | Whole class, one-on-one, or small group. Lesson duration varies because it offers teachers several activities from which to choose. | Yes | No, but there is a digital download code that provides access to songs, worksheets, and reference materials. |
| Sonday System 1 (SS1) |
For beginning readers (reading levels corresponding to Grades K–2). Intervention program for Tiers 2 and 3. Instruction is based on skill or stage rather than age or grade. Each lesson plan uses proven Orton-Gillingham methods to provide effective intervention in small group settings. The curriculum for SS1 begins with a review of pre-reading skills and then moves on to phonics (vowels, vowel pairs, and diphthongs) and consonant blends and digraphs. Students learn how to blend sounds together for reading and break sounds apart for spelling, and the English language rules for sounding out words (a.k.a. the phonemic code) are explicitly taught. Note For BTS 2026, we are launching Sonday System Secondary 1—a new program based on the SS1 scope and sequence but specifically designed to better engage students in Grade 4 and above. |
One-on-one or small group. 35-minute sessions. | Yes | Yes |
| Sonday System 2 (SS2) |
For intermediate readers (reading levels corresponding to Grades 3–8). Intervention program for Tiers 2 and 3. Instruction is based on skill or stage rather than age or grade. Each lesson plan uses proven Orton-Gillingham methods to provide effective intervention in small group settings. Topics in SS2 include a review of SS1 as well as syllable types and division, morphology (roots, suffixes, and prefixes), and non-phonetic words. |
One-on-one or small group. 35-minute sessions. | Yes | Yes |
| Essentials (E) | Provides multisensory phonics instruction for all students in Grades K–5 and is based on rostered grade level. It can also be used to identify students who may benefit from reading intervention. Like LPL, SS1, and SS2, the Essentials program is based on Orton-Gillingham methodology. | Whole class. 20-minute sessions. | No. There are some optional print components, but you must have the digital version in order to teach the course. | Yes |
| WinVocab (VOC) | A series of 180 mini-lessons of one vocabulary word per day. Each lesson includes the the word's definition, its part(s) of speech, its synonyms and antonyms (as applicable), an example sentence, and an activity to practice the word. | Whole class. Timing is up to the teacher. | No | Yes |
| WinLit | Print adaptations of six classic novels (such as Pollyanna and Around the World in 80 Days) at both a Hi-Lo (high interest, low reading) level and an Adapted level. These readers are sold in packs of 6 and are for students who have pre-symbolic reading skills or significant cognitive disabilities who require age-respectful literature. | Whole class or small group. Session duration varies. | Yes | No. The readers are physical copies, not digital. However, digital worksheets/bonus materials are available as a "digital bookshelf" on the Sonday digital platform. |
The chart below visualizes the product comparison between the four main products—LPL, SS1, SS2, and E.