Employer's loss of a performance report is not, by itself, an adverse employment action.
Investigation of employee that did not affect her working conditions was not an adverse employment action; the suggestion that others were placed on paid leave while under investigation did not make the continued conditions of employment an adverse action.
Denial of transfer not adverse, since application was untimely.
Music and dance teacher did not establish that classes other than remedial math were available to teach; the assignment therefore was not an adverse one.
Lack of comparators for most claims.
Claim of hostile work environment from student animus is defeated by district's incremental and timely response.
Employer's speech in workplace reasonable.
As no adverse action, no retaliation; actions had sufficient neutral justification.
Standards for Title VII claim identical to Title IX claim.
http://cdn.ca9.uscourts.gov/datastore/opinions/2018/06/11/15-15939.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.