The top reported proficiency rate is 49% in English language arts. The lowest is 45% in Math.
Original Research by School Decision on Mosaics Public School Inc.
Mosaics Public School Inc. is a single-school district operating in the greater Caldwell, Idaho, area. It runs one school, Mosaics Public School, which serves students from kindergarten through middle school. Publicly reported NCES records indicate the school expanded its grade span to include eighth grade for the current school year, having previously stopped at seventh. That change gives families in the Caldwell area a full elementary-through-middle-school STEAM pathway at one charter school, which is a meaningful option for parents who want continuity across those years without changing buildings.
The school's enrollment is modest for its grade band, with roughly even distribution across grades. The student body is predominantly white, with a substantial Hispanic minority and small numbers of students identifying as American Indian or Alaska Native, Native Hawaiian or Pacific Islander, or two or more races. There are no Asian or Black students reported in the current data. Information on free or reduced-price lunch eligibility was not available, nor were figures for special education identification or English learner status, so a full picture of the school's socioeconomic and special-population composition is not possible from the data on hand. A parent may want to ask the school directly about these indicators.
On Idaho's state assessment, the ISAT, results across grades and subjects are mixed. In math, proficiency rates at the lower elementary grades sit around the midpoint, with third and fifth grade landing at about half of tested students meeting or exceeding the bar. Fourth grade comes in somewhat below that. The clearest soft spot is sixth grade, where the proficiency rate drops well below the other grades. Seventh grade rebounds to around half, and the newly added eighth grade lands lower again. In English language arts, the pattern is similar: third grade is at about half, fourth and sixth grade dip below that, and fifth grade stands out as the strongest result in the entire data set, with a clear majority of tested students reaching proficiency. Seventh and eighth grade ELA results were suppressed, as were the two science results for fifth and eighth grade. Suppression at this scale typically reflects small testing groups, and the tested counts at Mosaics are small enough that privacy protections may have kicked in. A parent should not read suppression as a weak result; it means the state did not publish a precise figure.
Because the school does not yet serve a full high school grade span in the assessment data, there is no graduation rate to report. That metric does not apply here.
Several categories that would help a parent round out the picture are simply absent. No locale brief was available, so there is no sourced description of the surrounding community, housing market, or commute context. No community or economic context data was provided. Program offerings beyond the STEAM framing in the district brief were not included. Civil-rights data, discipline information, course access details, staffing levels, and attendance rates were all missing. Title I status and charter or magnet designation were not reported in the structured fields, though the district brief refers to the school as a charter. Without these pieces, a parent would benefit from contacting the school directly to ask about teacher qualifications, class sizes, discipline practices, and what the STEAM curriculum looks like day to day.
What the data does show is a small, growing charter school with an even grade-by-grade distribution and a STEAM-oriented pathway now spanning kindergarten through eighth grade. State test results are uneven, with some grades performing respectably and others, particularly sixth grade math, sitting clearly lower. The strongest signal in the data is fifth grade, where both math and ELA results are among the school's best. For a family in the Caldwell area looking for a charter option with a STEAM emphasis and continuity through middle school, Mosaics is worth a closer look, with the understanding that the publicly available data leaves real gaps that a direct conversation with the school would help fill.
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